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Maryland Zip Codes
| Zip Code | Primary City | State Code | Primary County | Timezone | Type | Population |
|---|---|---|---|---|---|---|
| 20906 | Silver Spring | MD | Montgomery County | America/New_York | STANDARD | 71,216 |
| 20878 | Gaithersburg | MD | Montgomery County | America/New_York | STANDARD | 65,236 |
| 21234 | Parkville | MD | Baltimore County | America/New_York | STANDARD | 65,010 |
| 21740 | Hagerstown | MD | Washington County | America/New_York | STANDARD | 63,140 |
| 20874 | Germantown | MD | Montgomery County | America/New_York | STANDARD | 62,233 |
| 21122 | Pasadena | MD | Anne Arundel County | America/New_York | STANDARD | 61,589 |
| 21117 | Owings Mills | MD | Baltimore County | America/New_York | STANDARD | 61,337 |
| 21222 | Dundalk | MD | Baltimore County | America/New_York | STANDARD | 58,935 |
| 20904 | Silver Spring | MD | Montgomery County | America/New_York | STANDARD | 57,244 |
| 21061 | Glen Burnie | MD | Anne Arundel County | America/New_York | STANDARD | 56,453 |
| 20744 | Fort Washington | MD | Prince George’s County | America/New_York | STANDARD | 56,236 |
| 20902 | Silver Spring | MD | Montgomery County | America/New_York | STANDARD | 53,170 |
| 20772 | Upper Marlboro | MD | Prince George’s County | America/New_York | STANDARD | 52,768 |
| 20774 | Upper Marlboro | MD | Prince George’s County | America/New_York | STANDARD | 52,221 |
| 21215 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 52,078 |
| 20783 | Hyattsville | MD | Prince George’s County | America/New_York | STANDARD | 50,893 |
| 20850 | Rockville | MD | Montgomery County | America/New_York | STANDARD | 50,365 |
| 21206 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 49,901 |
| 20854 | Potomac | MD | Montgomery County | America/New_York | STANDARD | 49,694 |
| 21207 | Gwynn Oak | MD | Baltimore County | America/New_York | STANDARD | 49,599 |
| 21228 | Catonsville | MD | Baltimore County | America/New_York | STANDARD | 49,417 |
| 20852 | Rockville | MD | Montgomery County | America/New_York | STANDARD | 47,857 |
| 21702 | Frederick | MD | Frederick County | America/New_York | STANDARD | 47,437 |
| 21043 | Ellicott City | MD | Howard County | America/New_York | STANDARD | 47,134 |
| 21224 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 46,949 |
| 21921 | Elkton | MD | Cecil County | America/New_York | STANDARD | 45,698 |
| 20910 | Silver Spring | MD | Montgomery County | America/New_York | STANDARD | 45,096 |
| 21218 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 44,903 |
| 21044 | Columbia | MD | Howard County | America/New_York | STANDARD | 44,775 |
| 21229 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 44,687 |
| 21221 | Essex | MD | Baltimore County | America/New_York | STANDARD | 43,536 |
| 20706 | Lanham | MD | Prince George’s County | America/New_York | STANDARD | 43,225 |
| 21042 | Ellicott City | MD | Howard County | America/New_York | STANDARD | 43,021 |
| 21220 | Middle River | MD | Baltimore County | America/New_York | STANDARD | 42,936 |
| 21502 | Cumberland | MD | Allegany County | America/New_York | STANDARD | 41,810 |
| 21703 | Frederick | MD | Frederick County | America/New_York | STANDARD | 41,766 |
| 21701 | Frederick | MD | Frederick County | America/New_York | STANDARD | 41,340 |
| 20785 | Hyattsville | MD | Prince George’s County | America/New_York | STANDARD | 40,946 |
| 21045 | Columbia | MD | Howard County | America/New_York | STANDARD | 40,866 |
| 21157 | Westminster | MD | Carroll County | America/New_York | STANDARD | 40,191 |
| 20748 | Temple Hills | MD | Prince George’s County | America/New_York | STANDARD | 40,094 |
| 21236 | Nottingham | MD | Baltimore County | America/New_York | STANDARD | 39,653 |
| 21244 | Windsor Mill | MD | Baltimore County | America/New_York | STANDARD | 39,545 |
| 21804 | Salisbury | MD | Wicomico County | America/New_York | STANDARD | 39,461 |
| 20743 | Capitol Heights | MD | Prince George’s County | America/New_York | STANDARD | 39,439 |
| 21060 | Glen Burnie | MD | Anne Arundel County | America/New_York | STANDARD | 39,225 |
| 21401 | Annapolis | MD | Anne Arundel County | America/New_York | STANDARD | 39,118 |
| 20877 | Gaithersburg | MD | Montgomery County | America/New_York | STANDARD | 39,068 |
| 21093 | Lutherville Timonium | MD | Baltimore County | America/New_York | STANDARD | 38,895 |
| 21208 | Pikesville | MD | Baltimore County | America/New_York | STANDARD | 38,108 |
| 21113 | Odenton | MD | Anne Arundel County | America/New_York | STANDARD | 38,053 |
| 21014 | Bel Air | MD | Harford County | America/New_York | STANDARD | 37,976 |
| 20735 | Clinton | MD | Prince George’s County | America/New_York | STANDARD | 37,926 |
| 20747 | District Heights | MD | Prince George’s County | America/New_York | STANDARD | 37,924 |
| 21784 | Sykesville | MD | Carroll County | America/New_York | STANDARD | 37,813 |
| 20817 | Bethesda | MD | Montgomery County | America/New_York | STANDARD | 37,738 |
| 21144 | Severn | MD | Anne Arundel County | America/New_York | STANDARD | 37,372 |
| 20901 | Silver Spring | MD | Montgomery County | America/New_York | STANDARD | 37,338 |
| 21075 | Elkridge | MD | Howard County | America/New_York | STANDARD | 37,146 |
| 20740 | College Park | MD | Prince George’s County | America/New_York | STANDARD | 36,564 |
| 20707 | Laurel | MD | Prince George’s County | America/New_York | STANDARD | 36,549 |
| 20723 | Laurel | MD | Howard County | America/New_York | STANDARD | 36,319 |
| 21227 | Halethorpe | MD | Baltimore County | America/New_York | STANDARD | 35,695 |
| 21742 | Hagerstown | MD | Washington County | America/New_York | STANDARD | 35,114 |
| 20782 | Hyattsville | MD | Prince George’s County | America/New_York | STANDARD | 34,646 |
| 21225 | Brooklyn | MD | Baltimore city | America/New_York | STANDARD | 34,469 |
| 20886 | Montgomery Village | MD | Montgomery County | America/New_York | STANDARD | 34,419 |
| 21136 | Reisterstown | MD | Baltimore County | America/New_York | STANDARD | 33,778 |
| 21230 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 33,509 |
| 21009 | Abingdon | MD | Harford County | America/New_York | STANDARD | 33,444 |
| 21212 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 33,425 |
| 21771 | Mount Airy | MD | Frederick County | America/New_York | STANDARD | 32,827 |
| 21403 | Annapolis | MD | Anne Arundel County | America/New_York | STANDARD | 32,757 |
| 20603 | Waldorf | MD | Charles County | America/New_York | STANDARD | 32,649 |
| 20784 | Hyattsville | MD | Prince George’s County | America/New_York | STANDARD | 32,271 |
| 21133 | Randallstown | MD | Baltimore County | America/New_York | STANDARD | 31,847 |
| 20853 | Rockville | MD | Montgomery County | America/New_York | STANDARD | 31,438 |
| 20815 | Chevy Chase | MD | Montgomery County | America/New_York | STANDARD | 31,269 |
| 21217 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 31,125 |
| 21237 | Rosedale | MD | Baltimore County | America/New_York | STANDARD | 30,851 |
| 20814 | Bethesda | MD | Montgomery County | America/New_York | STANDARD | 30,822 |
| 21209 | Baltimore | MD | Baltimore County | America/New_York | STANDARD | 30,766 |
| 21015 | Bel Air | MD | Harford County | America/New_York | STANDARD | 30,451 |
| 20721 | Bowie | MD | Prince George’s County | America/New_York | STANDARD | 30,342 |
| 21801 | Salisbury | MD | Wicomico County | America/New_York | STANDARD | 30,063 |
| 20745 | Oxon Hill | MD | Prince George’s County | America/New_York | STANDARD | 29,518 |
| 20602 | Waldorf | MD | Charles County | America/New_York | STANDARD | 29,425 |
| 21239 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 28,635 |
| 21146 | Severna Park | MD | Anne Arundel County | America/New_York | STANDARD | 28,489 |
| 20871 | Clarksburg | MD | Montgomery County | America/New_York | STANDARD | 28,329 |
| 20770 | Greenbelt | MD | Prince George’s County | America/New_York | STANDARD | 28,181 |
| 20705 | Beltsville | MD | Prince George’s County | America/New_York | STANDARD | 28,119 |
| 21213 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 27,881 |
| 20746 | Suitland | MD | Prince George’s County | America/New_York | STANDARD | 27,494 |
| 20601 | Waldorf | MD | Charles County | America/New_York | STANDARD | 27,340 |
| 21216 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 27,296 |
| 20653 | Lexington Park | MD | St. Mary’s County | America/New_York | STANDARD | 26,799 |
| 20708 | Laurel | MD | Prince George’s County | America/New_York | STANDARD | 26,599 |
| 20715 | Bowie | MD | Prince George’s County | America/New_York | STANDARD | 26,519 |
| 20876 | Germantown | MD | Montgomery County | America/New_York | STANDARD | 26,511 |
| 20720 | Bowie | MD | Prince George’s County | America/New_York | STANDARD | 26,243 |
| 21001 | Aberdeen | MD | Harford County | America/New_York | STANDARD | 26,121 |
| 20879 | Gaithersburg | MD | Montgomery County | America/New_York | STANDARD | 26,120 |
| 20832 | Olney | MD | Montgomery County | America/New_York | STANDARD | 25,766 |
| 21114 | Crofton | MD | Anne Arundel County | America/New_York | STANDARD | 25,724 |
| 20903 | Silver Spring | MD | Montgomery County | America/New_York | STANDARD | 25,540 |
| 20912 | Takoma Park | MD | Montgomery County | America/New_York | STANDARD | 25,428 |
| 21030 | Cockeysville | MD | Baltimore County | America/New_York | STANDARD | 25,312 |
| 21040 | Edgewood | MD | Harford County | America/New_York | STANDARD | 25,290 |
| 20737 | Riverdale | MD | Prince George’s County | America/New_York | STANDARD | 24,987 |
| 21811 | Berlin | MD | Worcester County | America/New_York | STANDARD | 24,263 |
| 21601 | Easton | MD | Talbot County | America/New_York | STANDARD | 24,095 |
| 20659 | Mechanicsville | MD | St. Mary’s County | America/New_York | STANDARD | 23,918 |
| 21076 | Hanover | MD | Anne Arundel County | America/New_York | STANDARD | 23,642 |
| 20716 | Bowie | MD | Prince George’s County | America/New_York | STANDARD | 22,739 |
| 21158 | Westminster | MD | Carroll County | America/New_York | STANDARD | 22,404 |
| 21012 | Arnold | MD | Anne Arundel County | America/New_York | STANDARD | 22,306 |
| 21286 | Towson | MD | Baltimore County | America/New_York | STANDARD | 21,782 |
| 20646 | La Plata | MD | Charles County | America/New_York | STANDARD | 21,601 |
| 21202 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 21,506 |
| 21214 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 21,295 |
| 21037 | Edgewater | MD | Anne Arundel County | America/New_York | STANDARD | 20,851 |
| 20657 | Lusby | MD | Calvert County | America/New_York | STANDARD | 20,519 |
| 21409 | Annapolis | MD | Anne Arundel County | America/New_York | STANDARD | 20,175 |
| 21078 | Havre De Grace | MD | Harford County | America/New_York | STANDARD | 20,002 |
| 21223 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 19,793 |
| 21704 | Frederick | MD | Frederick County | America/New_York | STANDARD | 19,623 |
| 21204 | Towson | MD | Baltimore County | America/New_York | STANDARD | 19,605 |
| 21901 | North East | MD | Cecil County | America/New_York | STANDARD | 19,585 |
| 20895 | Kensington | MD | Montgomery County | America/New_York | STANDARD | 19,042 |
| 20724 | Laurel | MD | Anne Arundel County | America/New_York | STANDARD | 18,669 |
| 20905 | Silver Spring | MD | Montgomery County | America/New_York | STANDARD | 18,268 |
| 21613 | Cambridge | MD | Dorchester County | America/New_York | STANDARD | 18,167 |
| 20816 | Bethesda | MD | Montgomery County | America/New_York | STANDARD | 18,081 |
| 21108 | Millersville | MD | Anne Arundel County | America/New_York | STANDARD | 17,894 |
| 21050 | Forest Hill | MD | Harford County | America/New_York | STANDARD | 17,848 |
| 21201 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 17,819 |
| 20855 | Derwood | MD | Montgomery County | America/New_York | STANDARD | 16,557 |
| 21774 | New Market | MD | Frederick County | America/New_York | STANDARD | 16,515 |
| 21085 | Joppa | MD | Harford County | America/New_York | STANDARD | 16,511 |
| 20866 | Burtonsville | MD | Montgomery County | America/New_York | STANDARD | 16,499 |
| 20794 | Jessup | MD | Howard County | America/New_York | STANDARD | 16,182 |
| 20650 | Leonardtown | MD | St. Mary’s County | America/New_York | STANDARD | 15,979 |
| 20613 | Brandywine | MD | Prince George’s County | America/New_York | STANDARD | 15,923 |
| 21211 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 15,481 |
| 21046 | Columbia | MD | Howard County | America/New_York | STANDARD | 15,433 |
| 21054 | Gambrills | MD | Anne Arundel County | America/New_York | STANDARD | 15,412 |
| 21074 | Hampstead | MD | Carroll County | America/New_York | STANDARD | 15,070 |
| 20639 | Huntingtown | MD | Calvert County | America/New_York | STANDARD | 14,969 |
| 21128 | Perry Hall | MD | Baltimore County | America/New_York | STANDARD | 14,954 |
| 20619 | California | MD | St. Mary’s County | America/New_York | STANDARD | 14,743 |
| 20851 | Rockville | MD | Montgomery County | America/New_York | STANDARD | 14,660 |
| 21210 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 14,612 |
| 21231 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 14,556 |
| 21666 | Stevensville | MD | Queen Anne’s County | America/New_York | STANDARD | 14,205 |
| 21029 | Clarksville | MD | Howard County | America/New_York | STANDARD | 13,783 |
| 21205 | Baltimore | MD | Baltimore city | America/New_York | STANDARD | 13,665 |
| 20882 | Gaithersburg | MD | Montgomery County | America/New_York | STANDARD | 13,661 |
| 21047 | Fallston | MD | Harford County | America/New_York | STANDARD | 13,540 |
| 21620 | Chestertown | MD | Kent County | America/New_York | STANDARD | 13,533 |
| 21550 | Oakland | MD | Garrett County | America/New_York | STANDARD | 13,469 |
| 20781 | Hyattsville | MD | Prince George’s County | America/New_York | STANDARD | 13,274 |
| 20872 | Damascus | MD | Montgomery County | America/New_York | STANDARD | 13,138 |
| 21532 | Frostburg | MD | Allegany County | America/New_York | STANDARD | 13,123 |
| 20695 | White Plains | MD | Charles County | America/New_York | STANDARD | 12,725 |
| 21769 | Middletown | MD | Frederick County | America/New_York | STANDARD | 12,695 |
| 20678 | Prince Frederick | MD | Calvert County | America/New_York | STANDARD | 12,686 |
| 20607 | Accokeek | MD | Prince George’s County | America/New_York | STANDARD | 12,506 |
| 21102 | Manchester | MD | Carroll County | America/New_York | STANDARD | 12,176 |
| 21788 | Thurmont | MD | Frederick County | America/New_York | STANDARD | 11,919 |
| 21787 | Taneytown | MD | Carroll County | America/New_York | STANDARD | 11,549 |
| 21853 | Princess Anne | MD | Somerset County | America/New_York | STANDARD | 11,161 |
| 21842 | Ocean City | MD | Worcester County | America/New_York | STANDARD | 11,121 |
| 20732 | Chesapeake Beach | MD | Calvert County | America/New_York | STANDARD | 10,940 |
| 21793 | Walkersville | MD | Frederick County | America/New_York | STANDARD | 10,914 |
| 21617 | Centreville | MD | Queen Anne’s County | America/New_York | STANDARD | 10,614 |
| 20755 | Fort George G Meade | MD | Anne Arundel County | America/New_York | STANDARD | 10,477 |
| 21911 | Rising Sun | MD | Cecil County | America/New_York | STANDARD | 10,402 |
| 20636 | Hollywood | MD | St. Mary’s County | America/New_York | STANDARD | 10,357 |
| 21629 | Denton | MD | Caroline County | America/New_York | STANDARD | 10,285 |
| 20640 | Indian Head | MD | Charles County | America/New_York | STANDARD | 10,254 |
| 21713 | Boonsboro | MD | Washington County | America/New_York | STANDARD | 10,146 |
| 21090 | Linthicum Heights | MD | Anne Arundel County | America/New_York | STANDARD | 10,033 |
| 21048 | Finksburg | MD | Carroll County | America/New_York | STANDARD | 10,002 |
| 21795 | Williamsport | MD | Washington County | America/New_York | STANDARD | 9,942 |
| 21783 | Smithsburg | MD | Washington County | America/New_York | STANDARD | 9,881 |
| 21219 | Sparrows Point | MD | Baltimore County | America/New_York | STANDARD | 9,873 |
| 20736 | Owings | MD | Calvert County | America/New_York | STANDARD | 9,775 |
| 20710 | Bladensburg | MD | Prince George’s County | America/New_York | STANDARD | 9,764 |
| 20841 | Boyds | MD | Montgomery County | America/New_York | STANDARD | 9,706 |
| 20712 | Mount Rainier | MD | Prince George’s County | America/New_York | STANDARD | 9,179 |
| 21797 | Woodbine | MD | Howard County | America/New_York | STANDARD | 8,772 |
| 21032 | Crownsville | MD | Anne Arundel County | America/New_York | STANDARD | 8,553 |
| 20833 | Brookeville | MD | Montgomery County | America/New_York | STANDARD | 7,868 |
| 21770 | Monrovia | MD | Frederick County | America/New_York | STANDARD | 7,815 |
| 21035 | Davidsonville | MD | Anne Arundel County | America/New_York | STANDARD | 7,787 |
| 20711 | Lothian | MD | Anne Arundel County | America/New_York | STANDARD | 7,629 |
| 20754 | Dunkirk | MD | Calvert County | America/New_York | STANDARD | 7,512 |
| 21084 | Jarrettsville | MD | Harford County | America/New_York | STANDARD | 7,488 |
| 21875 | Delmar | MD | Wicomico County | America/New_York | STANDARD | 7,455 |
| 21754 | Ijamsville | MD | Frederick County | America/New_York | STANDARD | 7,439 |
| 20616 | Bryans Road | MD | Charles County | America/New_York | STANDARD | 7,435 |
| 21120 | Parkton | MD | Baltimore County | America/New_York | STANDARD | 7,286 |
| 21851 | Pocomoke City | MD | Worcester County | America/New_York | STANDARD | 7,252 |
| 21154 | Street | MD | Harford County | America/New_York | STANDARD | 7,187 |
| 20769 | Glenn Dale | MD | Prince George’s County | America/New_York | STANDARD | 7,061 |
| 21131 | Phoenix | MD | Baltimore County | America/New_York | STANDARD | 7,050 |
| 21163 | Woodstock | MD | Howard County | America/New_York | STANDARD | 7,031 |
| 20634 | Great Mills | MD | St. Mary’s County | America/New_York | STANDARD | 6,976 |
| 21722 | Clear Spring | MD | Washington County | America/New_York | STANDARD | 6,918 |
| 20759 | Fulton | MD | Howard County | America/New_York | STANDARD | 6,758 |
| 21716 | Brunswick | MD | Frederick County | America/New_York | STANDARD | 6,757 |
| 20837 | Poolesville | MD | Montgomery County | America/New_York | STANDARD | 6,605 |
| 21226 | Curtis Bay | MD | Anne Arundel County | America/New_York | STANDARD | 6,593 |
| 20685 | Saint Leonard | MD | Calvert County | America/New_York | STANDARD | 6,481 |
| 21017 | Belcamp | MD | Harford County | America/New_York | STANDARD | 6,404 |
| 21152 | Sparks Glencoe | MD | Baltimore County | America/New_York | STANDARD | 6,402 |
| 21904 | Port Deposit | MD | Cecil County | America/New_York | STANDARD | 6,401 |
| 20722 | Brentwood | MD | Prince George’s County | America/New_York | STANDARD | 6,362 |
| 20637 | Hughesville | MD | Charles County | America/New_York | STANDARD | 6,337 |
| 21632 | Federalsburg | MD | Caroline County | America/New_York | STANDARD | 6,227 |
| 21727 | Emmitsburg | MD | Frederick County | America/New_York | STANDARD | 6,079 |
| 21013 | Baldwin | MD | Baltimore County | America/New_York | STANDARD | 5,985 |
| 21776 | New Windsor | MD | Carroll County | America/New_York | STANDARD | 5,905 |
| 21619 | Chester | MD | Queen Anne’s County | America/New_York | STANDARD | 5,905 |
| 21104 | Marriottsville | MD | Howard County | America/New_York | STANDARD | 5,786 |
| 21087 | Kingsville | MD | Baltimore County | America/New_York | STANDARD | 5,742 |
| 21755 | Jefferson | MD | Frederick County | America/New_York | STANDARD | 5,740 |
| 21903 | Perryville | MD | Cecil County | America/New_York | STANDARD | 5,679 |
| 21826 | Fruitland | MD | Wicomico County | America/New_York | STANDARD | 5,656 |
| 21773 | Myersville | MD | Frederick County | America/New_York | STANDARD | 5,619 |
| 21161 | White Hall | MD | Harford County | America/New_York | STANDARD | 5,288 |
| 20622 | Charlotte Hall | MD | Charles County | America/New_York | STANDARD | 5,259 |
| 21863 | Snow Hill | MD | Worcester County | America/New_York | STANDARD | 5,202 |
| 21643 | Hurlock | MD | Dorchester County | America/New_York | STANDARD | 5,176 |
| 21638 | Grasonville | MD | Queen Anne’s County | America/New_York | STANDARD | 5,068 |
| 21830 | Hebron | MD | Wicomico County | America/New_York | STANDARD | 5,001 |
| 21655 | Preston | MD | Caroline County | America/New_York | STANDARD | 4,995 |
| 20714 | North Beach | MD | Calvert County | America/New_York | STANDARD | 4,995 |
| 21710 | Adamstown | MD | Frederick County | America/New_York | STANDARD | 4,901 |
| 21791 | Union Bridge | MD | Carroll County | America/New_York | STANDARD | 4,734 |
| 21111 | Monkton | MD | Baltimore County | America/New_York | STANDARD | 4,690 |
| 21252 | Towson | MD | Baltimore County | America/New_York | UNIQUE | 4,675 |
| 21639 | Greensboro | MD | Caroline County | America/New_York | STANDARD | 4,621 |
| 21162 | White Marsh | MD | Baltimore County | America/New_York | STANDARD | 4,511 |
| 21057 | Glen Arm | MD | Baltimore County | America/New_York | STANDARD | 4,463 |
| 20742 | College Park | MD | Prince George’s County | America/New_York | UNIQUE | 4,324 |
| 21660 | Ridgely | MD | Caroline County | America/New_York | STANDARD | 4,244 |
| 21758 | Knoxville | MD | Frederick County | America/New_York | STANDARD | 4,238 |
| 21140 | Riva | MD | Anne Arundel County | America/New_York | STANDARD | 4,231 |
| 21918 | Conowingo | MD | Cecil County | America/New_York | STANDARD | 4,125 |
| 21817 | Crisfield | MD | Somerset County | America/New_York | STANDARD | 4,102 |
| 21782 | Sharpsburg | MD | Washington County | America/New_York | STANDARD | 4,056 |
| 21849 | Parsonsburg | MD | Wicomico County | America/New_York | STANDARD | 3,845 |
| 21536 | Grantsville | MD | Garrett County | America/New_York | STANDARD | 3,829 |
| 21658 | Queenstown | MD | Queen Anne’s County | America/New_York | STANDARD | 3,802 |
| 21663 | Saint Michaels | MD | Talbot County | America/New_York | STANDARD | 3,745 |
| 21850 | Pittsville | MD | Wicomico County | America/New_York | STANDARD | 3,733 |
| 21738 | Glenwood | MD | Howard County | America/New_York | STANDARD | 3,668 |
| 21919 | Earleville | MD | Cecil County | America/New_York | STANDARD | 3,644 |
| 21750 | Hancock | MD | Washington County | America/New_York | STANDARD | 3,585 |
| 20676 | Port Republic | MD | Calvert County | America/New_York | STANDARD | 3,412 |
| 20776 | Harwood | MD | Anne Arundel County | America/New_York | STANDARD | 3,354 |
| 21890 | Westover | MD | Somerset County | America/New_York | UNIQUE | 3,248 |
| 21562 | Westernport | MD | Allegany County | America/New_York | STANDARD | 3,192 |
| 21756 | Keedysville | MD | Washington County | America/New_York | STANDARD | 3,172 |
| 21155 | Upperco | MD | Baltimore County | America/New_York | STANDARD | 3,124 |
| 20664 | Newburg | MD | Charles County | America/New_York | STANDARD | 3,121 |
| 20762 | Andrews Air Force Base | MD | Prince George’s County | America/New_York | STANDARD | 3,075 |
| 20777 | Highland | MD | Howard County | America/New_York | STANDARD | 3,046 |
| 20861 | Ashton | MD | Montgomery County | America/New_York | STANDARD | 3,020 |
| 21053 | Freeland | MD | Baltimore County | America/New_York | STANDARD | 3,018 |
| 20764 | Shady Side | MD | Anne Arundel County | America/New_York | STANDARD | 3,011 |
| 21250 | Baltimore | MD | Baltimore County | America/New_York | UNIQUE | 3,001 |
| 21837 | Mardela Springs | MD | Wicomico County | America/New_York | STANDARD | 2,975 |
| 21813 | Bishopville | MD | Worcester County | America/New_York | STANDARD | 2,936 |
| 21132 | Pylesville | MD | Harford County | America/New_York | STANDARD | 2,904 |
| 21028 | Churchville | MD | Harford County | America/New_York | STANDARD | 2,872 |
| 20623 | Cheltenham | MD | Prince George’s County | America/New_York | STANDARD | 2,846 |
| 21673 | Trappe | MD | Talbot County | America/New_York | STANDARD | 2,839 |
| 21757 | Keymar | MD | Frederick County | America/New_York | STANDARD | 2,810 |
| 21034 | Darlington | MD | Harford County | America/New_York | STANDARD | 2,802 |
| 20733 | Churchton | MD | Anne Arundel County | America/New_York | STANDARD | 2,780 |
| 21798 | Woodsboro | MD | Frederick County | America/New_York | STANDARD | 2,765 |
| 21561 | Swanton | MD | Garrett County | America/New_York | STANDARD | 2,662 |
| 21822 | Eden | MD | Wicomico County | America/New_York | STANDARD | 2,603 |
| 21631 | East New Market | MD | Dorchester County | America/New_York | STANDARD | 2,580 |
| 20751 | Deale | MD | Anne Arundel County | America/New_York | STANDARD | 2,552 |
| 21160 | Whiteford | MD | Harford County | America/New_York | STANDARD | 2,543 |
| 21623 | Church Hill | MD | Queen Anne’s County | America/New_York | STANDARD | 2,482 |
| 21915 | Chesapeake City | MD | Cecil County | America/New_York | STANDARD | 2,471 |
| 21651 | Millington | MD | Kent County | America/New_York | STANDARD | 2,448 |
| 21746 | Hagerstown | MD | Washington County | America/New_York | UNIQUE | 2,416 |
| 21661 | Rock Hall | MD | Kent County | America/New_York | STANDARD | 2,400 |
| 21402 | Annapolis | MD | Anne Arundel County | America/New_York | STANDARD | 2,390 |
| 21737 | Glenelg | MD | Howard County | America/New_York | STANDARD | 2,384 |
| 21005 | Aberdeen Proving Ground | MD | Harford County | America/New_York | STANDARD | 2,354 |
| 21531 | Friendsville | MD | Garrett County | America/New_York | STANDARD | 2,346 |
| 21777 | Point Of Rocks | MD | Frederick County | America/New_York | STANDARD | 2,333 |
| 21520 | Accident | MD | Garrett County | America/New_York | STANDARD | 2,327 |
| 21794 | West Friendship | MD | Howard County | America/New_York | STANDARD | 2,326 |
| 20662 | Nanjemoy | MD | Charles County | America/New_York | STANDARD | 2,326 |
| 20763 | Savage | MD | Howard County | America/New_York | STANDARD | 2,320 |
| 20778 | West River | MD | Anne Arundel County | America/New_York | STANDARD | 2,243 |
| 21635 | Galena | MD | Kent County | America/New_York | STANDARD | 2,200 |
| 21036 | Dayton | MD | Howard County | America/New_York | STANDARD | 2,162 |
| 20677 | Port Tobacco | MD | Charles County | America/New_York | STANDARD | 2,113 |
| 20842 | Dickerson | MD | Montgomery County | America/New_York | STANDARD | 2,093 |
| 20860 | Sandy Spring | MD | Montgomery County | America/New_York | STANDARD | 2,062 |
| 20689 | Sunderland | MD | Calvert County | America/New_York | STANDARD | 2,046 |
| 21838 | Marion Station | MD | Somerset County | America/New_York | STANDARD | 1,975 |
| 21668 | Sudlersville | MD | Queen Anne’s County | America/New_York | STANDARD | 1,973 |
| 21649 | Marydel | MD | Caroline County | America/New_York | STANDARD | 1,938 |
| 21678 | Worton | MD | Kent County | America/New_York | STANDARD | 1,868 |
| 21874 | Willards | MD | Wicomico County | America/New_York | STANDARD | 1,847 |
| 21539 | Lonaconing | MD | Allegany County | America/New_York | STANDARD | 1,846 |
| 21625 | Cordova | MD | Talbot County | America/New_York | STANDARD | 1,837 |
| 20675 | Pomfret | MD | Charles County | America/New_York | STANDARD | 1,836 |
| 21780 | Sabillasville | MD | Frederick County | America/New_York | STANDARD | 1,814 |
| 21917 | Colora | MD | Cecil County | America/New_York | STANDARD | 1,786 |
| 21545 | Mount Savage | MD | Allegany County | America/New_York | STANDARD | 1,716 |
| 21871 | Westover | MD | Somerset County | America/New_York | STANDARD | 1,635 |
| 20818 | Cabin John | MD | Montgomery County | America/New_York | STANDARD | 1,602 |
| 20670 | Patuxent River | MD | St. Mary’s County | America/New_York | STANDARD | 1,577 |
| 21555 | Oldtown | MD | Allegany County | America/New_York | STANDARD | 1,577 |
| 21657 | Queen Anne | MD | Queen Anne’s County | America/New_York | STANDARD | 1,533 |
| 21521 | Barton | MD | Allegany County | America/New_York | STANDARD | 1,521 |
| 20618 | Bushwood | MD | St. Mary’s County | America/New_York | STANDARD | 1,513 |
| 21530 | Flintstone | MD | Allegany County | America/New_York | STANDARD | 1,481 |
| 21659 | Rhodesdale | MD | Dorchester County | America/New_York | STANDARD | 1,480 |
| 21779 | Rohrersville | MD | Washington County | America/New_York | STANDARD | 1,449 |
| 21912 | Warwick | MD | Cecil County | America/New_York | STANDARD | 1,430 |
| 21557 | Rawlings | MD | Allegany County | America/New_York | STANDARD | 1,323 |
| 21640 | Henderson | MD | Caroline County | America/New_York | STANDARD | 1,251 |
| 21733 | Fairplay | MD | Washington County | America/New_York | STANDARD | 1,240 |
| 20693 | Welcome | MD | Charles County | America/New_York | STANDARD | 1,238 |
| 21654 | Oxford | MD | Talbot County | America/New_York | STANDARD | 1,195 |
| 21719 | Cascade | MD | Washington County | America/New_York | STANDARD | 1,162 |
| 20620 | Callaway | MD | St. Mary’s County | America/New_York | STANDARD | 1,160 |
| 20624 | Clements | MD | St. Mary’s County | America/New_York | STANDARD | 1,157 |
| 21920 | Elk Mills | MD | Cecil County | America/New_York | PO BOX | 1,153 |
| 21541 | Mc Henry | MD | Garrett County | America/New_York | STANDARD | 1,147 |
| 20625 | Cobb Island | MD | Charles County | America/New_York | PO BOX | 1,135 |
| 20611 | Bel Alton | MD | Charles County | America/New_York | STANDARD | 1,128 |
| 20688 | Solomons | MD | Calvert County | America/New_York | STANDARD | 1,113 |
| 20629 | Dowell | MD | Calvert County | America/New_York | PO BOX | 1,067 |
| 20690 | Tall Timbers | MD | St. Mary’s County | America/New_York | STANDARD | 1,046 |
| 20779 | Tracys Landing | MD | Anne Arundel County | America/New_York | STANDARD | 1,010 |
| 20609 | Avenue | MD | St. Mary’s County | America/New_York | STANDARD | 976 |
| 20686 | Saint Marys City | MD | St. Mary’s County | America/New_York | PO BOX | 949 |
| 21841 | Newark | MD | Worcester County | America/New_York | STANDARD | 942 |
| 21767 | Maugansville | MD | Washington County | America/New_York | STANDARD | 914 |
| 21636 | Goldsboro | MD | Caroline County | America/New_York | STANDARD | 913 |
| 20621 | Chaptico | MD | St. Mary’s County | America/New_York | STANDARD | 902 |
| 20896 | Garrett Park | MD | Montgomery County | America/New_York | PO BOX | 890 |
| 21869 | Vienna | MD | Dorchester County | America/New_York | STANDARD | 889 |
| 21645 | Kennedyville | MD | Kent County | America/New_York | STANDARD | 872 |
| 21913 | Cecilton | MD | Cecil County | America/New_York | PO BOX | 863 |
| 20658 | Marbury | MD | Charles County | America/New_York | STANDARD | 862 |
| 21778 | Rocky Ridge | MD | Frederick County | America/New_York | STANDARD | 840 |
| 21671 | Tilghman | MD | Talbot County | America/New_York | STANDARD | 836 |
| 21734 | Funkstown | MD | Washington County | America/New_York | PO BOX | 826 |
| 20684 | Saint Inigoes | MD | St. Mary’s County | America/New_York | STANDARD | 825 |
| 21856 | Quantico | MD | Wicomico County | America/New_York | STANDARD | 816 |
| 21861 | Sharptown | MD | Wicomico County | America/New_York | PO BOX | 806 |
| 20628 | Dameron | MD | St. Mary’s County | America/New_York | STANDARD | 791 |
| 21711 | Big Pool | MD | Washington County | America/New_York | STANDARD | 789 |
| 21914 | Charlestown | MD | Cecil County | America/New_York | PO BOX | 786 |
| 20701 | Annapolis Junction | MD | Anne Arundel County | America/New_York | STANDARD | 749 |
| 21821 | Deal Island | MD | Somerset County | America/New_York | STANDARD | 736 |
| 21524 | Corriganville | MD | Allegany County | America/New_York | PO BOX | 732 |
| 20645 | Issue | MD | Charles County | America/New_York | STANDARD | 717 |
| 20680 | Ridge | MD | St. Mary’s County | America/New_York | STANDARD | 702 |
| 20632 | Faulkner | MD | Charles County | America/New_York | STANDARD | 687 |
| 21872 | Whaleyville | MD | Worcester County | America/New_York | STANDARD | 675 |
| 21864 | Stockton | MD | Worcester County | America/New_York | STANDARD | 667 |
| 20674 | Piney Point | MD | St. Mary’s County | America/New_York | STANDARD | 638 |
| 20765 | Galesville | MD | Anne Arundel County | America/New_York | PO BOX | 631 |
| 20608 | Aquasco | MD | Prince George’s County | America/New_York | STANDARD | 629 |
| 21662 | Royal Oak | MD | Talbot County | America/New_York | STANDARD | 612 |
| 21538 | Kitzmiller | MD | Garrett County | America/New_York | STANDARD | 605 |
| 21664 | Secretary | MD | Dorchester County | America/New_York | PO BOX | 598 |
| 20880 | Washington Grove | MD | Montgomery County | America/New_York | PO BOX | 590 |
| 21723 | Cooksville | MD | Howard County | America/New_York | STANDARD | 587 |
| 21840 | Nanticoke | MD | Wicomico County | America/New_York | STANDARD | 573 |
| 20758 | Friendship | MD | Anne Arundel County | America/New_York | STANDARD | 570 |
| 21607 | Barclay | MD | Queen Anne’s County | America/New_York | STANDARD | 538 |
| 21677 | Woolford | MD | Dorchester County | America/New_York | STANDARD | 534 |
| 21082 | Hydes | MD | Baltimore County | America/New_York | STANDARD | 525 |
| 21153 | Stevenson | MD | Baltimore County | America/New_York | PO BOX | 519 |
| 21529 | Ellerslie | MD | Allegany County | America/New_York | PO BOX | 516 |
| 21766 | Little Orleans | MD | Allegany County | America/New_York | STANDARD | 509 |
| 21612 | Bozman | MD | Talbot County | America/New_York | STANDARD | 446 |
| 20692 | Valley Lee | MD | St. Mary’s County | America/New_York | STANDARD | 438 |
| 21405 | Annapolis | MD | Anne Arundel County | America/New_York | STANDARD | 426 |
| 20615 | Broomes Island | MD | Calvert County | America/New_York | STANDARD | 422 |
| 21647 | Mcdaniel | MD | Talbot County | America/New_York | STANDARD | 412 |
| 20838 | Barnesville | MD | Montgomery County | America/New_York | STANDARD | 409 |
| 21634 | Fishing Creek | MD | Dorchester County | America/New_York | STANDARD | 394 |
| 20862 | Brinklow | MD | Montgomery County | America/New_York | STANDARD | 393 |
| 21835 | Linkwood | MD | Dorchester County | America/New_York | STANDARD | 390 |
| 20868 | Spencerville | MD | Montgomery County | America/New_York | STANDARD | 384 |
| 20617 | Bryantown | MD | Charles County | America/New_York | STANDARD | 368 |
| 21610 | Betterton | MD | Kent County | America/New_York | STANDARD | 358 |
| 21071 | Glyndon | MD | Baltimore County | America/New_York | PO BOX | 355 |
| 20630 | Drayden | MD | St. Mary’s County | America/New_York | STANDARD | 346 |
| 21622 | Church Creek | MD | Dorchester County | America/New_York | STANDARD | 335 |
| 21679 | Wye Mills | MD | Talbot County | America/New_York | STANDARD | 332 |
| 20687 | Scotland | MD | St. Mary’s County | America/New_York | STANDARD | 331 |
| 21543 | Midlothian | MD | Allegany County | America/New_York | PO BOX | 325 |
| 20812 | Glen Echo | MD | Montgomery County | America/New_York | STANDARD | 314 |
| 21902 | Perry Point | MD | Cecil County | America/New_York | PO BOX | 313 |
| 21865 | Tyaskin | MD | Wicomico County | America/New_York | STANDARD | 310 |
| 21676 | Wittman | MD | Talbot County | America/New_York | STANDARD | 300 |
| 21628 | Crumpton | MD | Queen Anne’s County | America/New_York | PO BOX | 299 |
| 21156 | Upper Falls | MD | Baltimore County | America/New_York | STANDARD | 297 |
| 21717 | Buckeystown | MD | Frederick County | America/New_York | PO BOX | 296 |
| 21667 | Still Pond | MD | Kent County | America/New_York | STANDARD | 276 |
| 21056 | Gibson Island | MD | Anne Arundel County | America/New_York | PO BOX | 264 |
| 21829 | Girdletree | MD | Worcester County | America/New_York | STANDARD | 259 |
| 21251 | Baltimore | MD | Baltimore city | America/New_York | UNIQUE | 249 |
| 21052 | Fort Howard | MD | Baltimore County | America/New_York | PO BOX | 246 |
| 21824 | Ewell | MD | Somerset County | America/New_York | STANDARD | 234 |
| 21010 | Gunpowder | MD | Harford County | America/New_York | STANDARD | 216 |
| 20889 | Bethesda | MD | Montgomery County | America/New_York | UNIQUE | 210 |
| 21814 | Bivalve | MD | Wicomico County | America/New_York | STANDARD | 205 |
| 20606 | Abell | MD | St. Mary’s County | America/New_York | STANDARD | 204 |
| 20626 | Coltons Point | MD | St. Mary’s County | America/New_York | STANDARD | 198 |
| 21762 | Libertytown | MD | Frederick County | America/New_York | PO BOX | 176 |
| 21652 | Neavitt | MD | Talbot County | America/New_York | PO BOX | 170 |
| 21665 | Sherwood | MD | Talbot County | America/New_York | STANDARD | 169 |
| 21523 | Bloomington | MD | Garrett County | America/New_York | STANDARD | 165 |
| 21624 | Claiborne | MD | Talbot County | America/New_York | PO BOX | 165 |
| 21672 | Toddville | MD | Dorchester County | America/New_York | STANDARD | 161 |
| 21542 | Midland | MD | Allegany County | America/New_York | PO BOX | 161 |
| 21626 | Crapo | MD | Dorchester County | America/New_York | STANDARD | 145 |
| 21718 | Burkittsville | MD | Frederick County | America/New_York | STANDARD | 142 |
| 21077 | Harmans | MD | Anne Arundel County | America/New_York | STANDARD | 137 |
| 21051 | Fork | MD | Baltimore County | America/New_York | STANDARD | 132 |
| 21653 | Newcomb | MD | Talbot County | America/New_York | PO BOX | 132 |
| 21641 | Hillsboro | MD | Caroline County | America/New_York | PO BOX | 130 |
| 21810 | Allen | MD | Wicomico County | America/New_York | PO BOX | 125 |
| 20656 | Loveville | MD | St. Mary’s County | America/New_York | STANDARD | 122 |
| 20839 | Beallsville | MD | Montgomery County | America/New_York | STANDARD | 116 |
| 21714 | Braddock Heights | MD | Frederick County | America/New_York | PO BOX | 113 |
| 20899 | Gaithersburg | MD | Montgomery County | America/New_York | UNIQUE | 106 |
| 21866 | Tylerton | MD | Somerset County | America/New_York | PO BOX | 106 |
| 21648 | Madison | MD | Dorchester County | America/New_York | STANDARD | 104 |
| 21669 | Taylors Island | MD | Dorchester County | America/New_York | PO BOX | 102 |
| 20667 | Park Hall | MD | St. Mary’s County | America/New_York | STANDARD | 98 |
| 21650 | Massey | MD | Kent County | America/New_York | STANDARD | 98 |
| 21540 | Luke | MD | Allegany County | America/New_York | STANDARD | 93 |
| 21023 | Butler | MD | Baltimore County | America/New_York | PO BOX | 83 |
| 21644 | Ingleside | MD | Queen Anne’s County | America/New_York | STANDARD | 82 |
| 21130 | Perryman | MD | Harford County | America/New_York | PO BOX | 75 |
| 20612 | Benedict | MD | Charles County | America/New_York | PO BOX | 68 |
| 21867 | Upper Fairmount | MD | Somerset County | America/New_York | PO BOX | 52 |
| 21675 | Wingate | MD | Dorchester County | America/New_York | STANDARD | 43 |
| 21862 | Showell | MD | Worcester County | America/New_York | STANDARD | 41 |
| 21790 | Tuscarora | MD | Frederick County | America/New_York | STANDARD | 38 |
| 21781 | Saint James | MD | Washington County | America/New_York | PO BOX | 34 |
| 21105 | Maryland Line | MD | Baltimore County | America/New_York | PO BOX | 31 |
| 21930 | Georgetown | MD | Cecil County | America/New_York | PO BOX | 30 |
| 21031 | Hunt Valley | MD | Baltimore County | America/New_York | STANDARD | 25 |
| 21627 | Crocheron | MD | Dorchester County | America/New_York | STANDARD | 25 |
| 21715 | Brownsville | MD | Washington County | America/New_York | PO BOX | 18 |
| 20660 | Morganza | MD | St. Mary’s County | America/New_York | PO BOX | 16 |
| 21705 | Frederick | MD | Frederick County | America/New_York | PO BOX | 4 |
| 21285 | Towson | MD | Baltimore County | America/New_York | PO BOX | 3 |
| 21233 | Baltimore | MD | Baltimore City | America/New_York | STANDARD | 0 |
| 20892 | Bethesda | MD | Montgomery County | America/New_York | UNIQUE | 0 |
| 21240 | Baltimore | MD | Anne Arundel County | America/New_York | STANDARD | 0 |
| 21287 | Baltimore | MD | Baltimore City | America/New_York | STANDARD | 0 |
| 20771 | Greenbelt | MD | Prince George’s County | America/New_York | UNIQUE | 0 |
| 21560 | Spring Gap | MD | Allegany County | America/New_York | PO BOX | 0 |
| 20661 | Mount Victoria | MD | Charles County | America/New_York | PO BOX | 0 |
| 20894 | Bethesda | MD | Montgomery County | America/New_York | UNIQUE | 0 |
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