County profile

Somerset County

New Jersey · ACS 2020–2024

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Latest estimates

At a glance

U.S. Census Bureau American Community Survey 5-year estimates.

Total population
349,846
Median household income
$140,374
People below poverty
5.4%
Median home value
$552,100

Income

The median income of households in Somerset County, New Jersey was $140,374. An estimated 2.4% of households had income below $10,000 a year and 33.8% had income of $200,000 or more.

Household Income in Somerset County, New Jersey in 2020-2024

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Percent
Less than $10,000 2.4
$10,000 to $14,999 1.4
$15,000 to $24,999 3.3
$25,000 to $34,999 3.3
$35,000 to $49,999 4.9
$50,000 to $74,999 9.3
$75,000 to $99,999 9.6
$100,000 to $149,999 18.9
$150,000 to $199,999 13.1
$200,000 or more 33.8

Median Earnings for Full-Time Year-Round Workers by Sex in Somerset County, New Jersey in 2020-2024

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Dollars
Male 103073
Female 80498

An estimated 83.7% of households received earnings. An estimated 27.7% of households received Social Security and an estimated 24.5 % of households received retirement income other than Social Security. The average income from Social Security was $29,535. These income sources are not mutually exclusive; that is, some households received income from more than one source.

Proportion of Households with Various Income Sources in Somerset County, New Jersey in 2020-2024

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Percent
Earnings 83.7
Social Security 27.7
Retirement income 24.5
Supplemental Security Income (SSI) 2.9
Cash public assistance income 1.8

Poverty and Participation in Government Programs

In 2020-2024, 5.4 % of people were in poverty. An estimated 6.7% of children under 18 were below the poverty level, compared with 6.2% of people 65 years old and over. An estimated 4.7% of people 18 to 64 years were below the poverty level.

Poverty Rates in Somerset County, New Jersey in 2020-2024

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Percent
People in poverty 5.4
Children under 18 years below poverty 6.7
People 65 years old and over below poverty 6.2
People 18 to 64 years below poverty 4.7

In 2020-2024, 3.7 % of households received SNAP (the Supplemental Nutrition Assistance Program). An estimated 48.3% of households that received SNAP had children under 18, and 52.3% of households that received SNAP had one or more people 60 years and over. An estimated 35.1% of all households receiving SNAP were families with a female householder and no spouse present.


Among the civilian noninstitutionalized population in Somerset County, New Jersey in 2020-2024, 94.6% had health insurance coverage and 5.4% did not have health insurance coverage. Private coverage was 81.6% and public coverage was 24.4%, respectively. The percentage of children under the age of 19 with no health insurance coverage was 3.3%.


In 2020-2024, Somerset County, New Jersey had a total population of 349,846 - 177,430 (50.7%) females and 172,416 (49.3%) males. The median age was 41.8 years. An estimated 21.2% of the population was under 18 years, 30.5% was 19 to 44 years, 29.1% was 45 to 64 years, and 17 % was 65 years and older.

Population by Age and Sex for Somerset County, New Jersey in 2020-2024

Male Female
Under 5 8791 8447
5 to 9 10433 9456
10 to 14 11167 10926
15 to 19 11782 10705
20 to 24 10040 10217
25 to 29 9837 9819
30 to 34 10283 10212
35 to 39 11400 11880
40 to 44 11622 11447
45 to 49 12091 12090
50 to 54 12950 12999
55 to 59 13336 13301
60 to 64 12221 12857
65 to 69 9525 10562
70 to 74 6814 7319
75 to 79 4484 6010
80 to 84 3232 4298
85 and over 2408 4885

Hispanic Origin and Race

For people reporting one race alone, 51.6% were White; 9.5% were Black or African American; 2.3% were American Indian and Alaska Native; 19.6% were Asian; 3.5% were Native Hawaiian and Other Pacific Islander, and 0% were Some Other Race. An estimated 10.4% reported Two or More Races. An estimated 17.6% of the people in Somerset County, New Jersey were Hispanic or Latino. An estimated 49.3% of the people in Somerset County, New Jersey were White alone, non-Hispanic. People of Hispanic origin may be of any race.


Households and Families

In 2020-2024, there were 130,802 households in Somerset County, New Jersey. The average household size was 2.64 people.

Married-couple households made up 57.8% of the households in Somerset County, New Jersey while cohabiting couple households made up 5.7% of households. Female householders with no spouse or partner present were 23.1% of all households, while 13.4% of households had male householders with no spouse or partner present. Some households had one person, as 9.3% of households were male householders living alone, and 14% were female householders living alone, for a total of 23.3% of all households.

In Somerset County, New Jersey, 32.3% of all households had one or more people under the age of 18; 31.7% of all households had one or more people 65 years and over.

Types of Households in Somerset County, New Jersey in 2020-2024

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Percent
Married-couple households 57.8
Cohabiting Couples 5.7
Male Householder
No spouse/partner present
13.4
Female Householder
No spouse/partner present
23.1

Marital Status

Among persons 15 and older, 58.3% of males and 53.2% of females were currently married.

Population 15 years and over Percent
Males
Percent
Females
Never married 32.9 28.6
Now married, except separated 58.3 53.2
Separated 0.8 1.3
Widowed 2 7.7
Divorced 6 9.2

Grandparents and Grandchildren

In Somerset County, New Jersey, 6,611 grandparents lived with their grandchildren under 18 years old. Of those grandparents, 12.9% were responsible for the basic needs of their grandchildren.


Nativity and Foreign-Born

In 2020-2024, an estimated 72.1% of the people living in Somerset County, New Jersey were U.S. natives. 50.7% of the Somerset County, New Jersey population were living in the state where they were born.

Approximately 27.9% of Somerset County, New Jersey residents in 2020-2024 were foreign-born. 59.7% of foreign-born were naturalized U.S. citizens and an estimated 69.5 % entered the country before the year 2010.

Foreign-born residents of Somerset County, New Jersey come from different parts of the world. The bar graph below displays the percentage of foreign-born from each world region of birth in 2020-2024 for Somerset County, New Jersey.

Region of Birth for the Foreign-Born Population in Somerset County, New Jersey in 2020-2024

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Percent
Latin America 33.6
Asia 49
Europe 11.8
Africa 4.3
Northern America 1.1
Oceania 0.2

Language

Among people at least five years old living in Somerset County, New Jersey in 2020-2024, 34.7 % spoke a language other than English at home. Spanish was spoken by 13% of people at least five years old; 11.5% reported that they did not speak English "very well."

Percentage of the Population 5 years and over who Speak a Language other than English in Somerset County, New Jersey in 2020-2024

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Percent
Spanish 13
Other Indo-European languages 11.5
Asian and Pacific Islander languages 8.7
Other languages 1.5

Geographic Mobility

In 2020-2024, 90.9 % of the people at least one year old living in Somerset County, New Jersey were living in the same house one year earlier.

Geographic Mobility of Residents of Somerset County, New Jersey in 2020-2024

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Percent
Same house 90.9
Different house, same county 3.6
Different county, same state 3.3
Different state 1.5
Abroad 0.8

Education

In 2020-2024, 94 % of people 25 years and over had at least graduated from high school and 57.8% had a bachelor's degree or higher. An estimated 6% did not complete high school.

The total school enrollment in Somerset County, New Jersey was 82,578 in 2020-2024. Nursery school enrollment was 5,445 and kindergarten through 12th grade enrollment was 57,132. College or graduate school enrollment was 20,001.

Educational Attainment of People in Somerset County, New Jersey in 2020-2024

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Percent
Less than high school diploma 6
High school diploma or equivalency 17.6
Some college, no degree 12.7
Associate's degree 6
Bachelor's degree 31.2
Graduate or professional degree 26.6

Disability

In Somerset County, New Jersey, among the civilian noninstitutionalized population in 2020-2024, 8.6 % reported a disability. The likelihood of having a disability varied by age - from 3.6% of people under 18 years old, to 5.5% of people 18 to 64 years old, and to 26.7% of those 65 and over.


Employment Status and Type of Employer

In Somerset County, New Jersey, 66.6 % of the population 16 and over were employed; 30% were not currently in the labor force.

An estimated 83.4% of the people employed were private wage and salary workers; 11.9% were federal, state, or local government workers; and 4.6 % were self-employed in their own (not incorporated) business.

Class of worker Number Percent
Private wage and salary workers 158,919 83.4
Federal, state, or local government workers 22,687 11.9
Self-employed workers in own not incorporated business 8,708 4.6

Industries

In 2020-2024, the civilian employed population 16 years and older in Somerset County, New Jersey worked in the following industries:

Percent by Industry in Somerset County, New Jersey in 2020-2024

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Percent
Agriculture, forestry, fishing and hunting, and mining 0.2
Construction 4.4
Manufacturing 12.7
Wholesale trade 2.7
Retail trade 9.3
Transportation and warehousing, and utilities 4.8
Information 3.4
Finance and insurance, and real estate and rental and leasing 9.4
Professional, scientific, and management, and administrative and waste management services 18.2
Educational services, and health care and social assistance 22.4
Arts, entertainment, and recreation, and accommodation, and food services 5.5
Other Services, except public administration 3.7
Public administration 3.3

Occupations

Occupations for the Civilian Employed Population 16 Years and over in Somerset County, New Jersey in 2020-2024

Civilian employed population 16 years and over Number Percent
Management, business, sciences, and arts occupations 108,917 57.2
Service occupations 21,538 11.3
Sales and office occupations 33,569 17.6
Natural resources, construction, and maintenance occupations 9,418 4.9
Production, transportation, and material moving occupations 17,108 9

Commuting to Work

An estimated 63.8% of Somerset County, New Jersey workers drove to work alone in 2020-2024, and 6.5% carpooled. Among those who commuted to work, it took them on average 31.4 minutes to get to work.

Percent of Workers 16 and over Commuting by Mode in Somerset County, New Jersey in 2020-2024

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Percent
Car, truck, van -- drove alone 63.8
Car, truck, van -- carpooled 6.5
Public transportation (excluding taxicab) 3.4
Walked 1.2
Other means 2.4
Worked from home 22.7

In 2020-2024, Somerset County, New Jersey had a total of 133,639 housing units. Of these housing units, 72.3% were single-family houses either not attached to any other structure or attached to one or more structures (commonly referred to as "townhouses" or "row houses"). 27.5% of the housing units were located in multi-unit structures, or those buildings that contained two or more apartments. 0.2% were mobile homes, while any remaining housing units were classified as "other," which included boats, recreational vehicles, vans, etc.

Types of Housing Units in Somerset County, New Jersey in 2020-2024

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Percent
Single-family houses 72.3
Apartments in multi-unit structures 27.5
Mobile homes 0.2
Boat, RV, van, etc 0

7.4% of the housing inventory was comprised of houses built since 2010, while 9.3% of the houses were first built in 1939 or earlier. The median number of rooms in all housing units in Somerset County, New Jersey was 6.3 rooms, and of these housing units 61.9% had three or more bedrooms.


In 2020-2024, Somerset County, New Jersey had 130,802 housing units that were occupied or had people living in them, while the remaining 2,837 were vacant. Of the occupied housing units, the percentage of these houses occupied by owners (also known as the homeownership rate) was 74.3% while renters occupied 25.7%. The average household size of owner-occupied houses was 2.75 and in renter-occupied houses it was 2.35.

3.2% of householders of these occupied houses had moved into their house since 2021, while 10.2% moved into their house in 1989 or earlier. Households without a vehicle available for personal use comprised 4% and another 22.7% had three or more vehicles available for use.

The following chart provides the primary fuel used to heat houses in Somerset County, New Jersey:

House Heating Fuel Used in Somerset County, New Jersey in 2020-2024

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Percent
Gas 80.2
Electricity 14.4
Fuel oil, kerosene, etc 4.3
All other fuels 0.7
No fuel used 0.4

In 2020-2024, the median property value for owner-occupied houses in Somerset County, New Jersey was $552,100.

Of the owner-occupied households, 64.1 % had a mortgage. 35.9% owned their houses "free and clear," that is without a primary mortgage or loan on the house. The median monthly housing costs for owners with a mortgage was $3,156 and for owners without a mortgage it was $1,408.

For renter-occupied houses, the median gross rent for Somerset County, New Jersey was $2,033. Gross rent includes the monthly contract rent and any monthly payments made for electricity, gas, water and sewer, and any other fuels to heat the house.