Williamson County

The median income of households in Williamson County, Tennessee was $135,594. An estimated 2.3% of households had income below $10,000 a year and 30.9% had income of $200,000 or more.

An estimated 83.4% of households received earnings. An estimated 25.8% of households received Social Security and an estimated 23 % of households received retirement income other than Social Security. The average income from Social Security was $30,691. These income sources are not mutually exclusive; that is, some households received income from more than one source.

In 2020-2024, 4.6 % of people were in poverty. An estimated 4.8% of children under 18 were below the poverty level, compared with 5.8% of people 65 years old and over. An estimated 4.3% of people 18 to 64 years were below the poverty level.

In 2020-2024, 1.9 % of households received SNAP (the Supplemental Nutrition Assistance Program). An estimated 47.9% of households that received SNAP had children under 18, and 44.6% of households that received SNAP had one or more people 60 years and over. An estimated 25.6% of all households receiving SNAP were families with a female householder and no spouse present.

Among the civilian noninstitutionalized population in Williamson County, Tennessee in 2020-2024, 95.6% had health insurance coverage and 4.4% did not have health insurance coverage. Private coverage was 85.3% and public coverage was 20.7%, respectively. The percentage of children under the age of 19 with no health insurance coverage was 2.5%.

In 2020-2024, Williamson County, Tennessee had a total population of 260,351 - 131,536 (50.5%) females and 128,815 (49.5%) males. The median age was 40.4 years. An estimated 25.8% of the population was under 18 years, 29.1% was 19 to 44 years, 27.9% was 45 to 64 years, and 14.8 % was 65 years and older.

In 2020-2024, there were 92,214 households in Williamson County, Tennessee. The average household size was 2.81 people.

Married-couple households made up 67.1% of the households in Williamson County, Tennessee while cohabiting couple households made up 3.4% of households. Female householders with no spouse or partner present were 19% of all households, while 10.5% of households had male householders with no spouse or partner present. Some households had one person, as 7.2% of households were male householders living alone, and 11.8% were female householders living alone, for a total of 19% of all households.

In Williamson County, Tennessee, 38.4% of all households had one or more people under the age of 18; 28.2% of all households had one or more people 65 years and over.

In 2020-2024, an estimated 91.5% of the people living in Williamson County, Tennessee were U.S. natives. 38.6% of the Williamson County, Tennessee population were living in the state where they were born.

Approximately 8.5% of Williamson County, Tennessee residents in 2020-2024 were foreign-born. 44.4% of foreign-born were naturalized U.S. citizens and an estimated 57.1 % entered the country before the year 2010.

Foreign-born residents of Williamson County, Tennessee 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 Williamson County, Tennessee.

Among people at least five years old living in Williamson County, Tennessee in 2020-2024, 9.8 % spoke a language other than English at home. Spanish was spoken by 3.8% of people at least five years old; 2.3% reported that they did not speak English "very well."

In 2020-2024, 87.8 % of the people at least one year old living in Williamson County, Tennessee were living in the same house one year earlier.

In 2020-2024, 96.3 % of people 25 years and over had at least graduated from high school and 62.7% had a bachelor's degree or higher. An estimated 3.7% did not complete high school.

The total school enrollment in Williamson County, Tennessee was 69,905 in 2020-2024. Nursery school enrollment was 4,610 and kindergarten through 12th grade enrollment was 53,610. College or graduate school enrollment was 11,685.

In Williamson County, Tennessee, among the civilian noninstitutionalized population in 2020-2024, 8.2 % reported a disability. The likelihood of having a disability varied by age - from 4.2% of people under 18 years old, to 5.7% of people 18 to 64 years old, and to 25% of those 65 and over.

In Williamson County, Tennessee, 64.8 % of the population 16 and over were employed; 33.6% were not currently in the labor force.

An estimated 80.5% of the people employed were private wage and salary workers; 10.2% were federal, state, or local government workers; and 9.1 % were self-employed in their own (not incorporated) business.

In 2020-2024, the civilian employed population 16 years and older in Williamson County, Tennessee worked in the following industries:

An estimated 64.9% of Williamson County, Tennessee workers drove to work alone in 2020-2024, and 5.1% carpooled. Among those who commuted to work, it took them on average 27.9 minutes to get to work.

In 2020-2024, Williamson County, Tennessee had a total of 96,921 housing units. Of these housing units, 83.1% 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"). 15.4% of the housing units were located in multi-unit structures, or those buildings that contained two or more apartments. 1.5% were mobile homes, while any remaining housing units were classified as "other," which included boats, recreational vehicles, vans, etc.

31.3% of the housing inventory was comprised of houses built since 2010, while 2.3% of the houses were first built in 1939 or earlier. The median number of rooms in all housing units in Williamson County, Tennessee was 7.5 rooms, and of these housing units 79.4% had three or more bedrooms.

In 2020-2024, Williamson County, Tennessee had 92,214 housing units that were occupied or had people living in them, while the remaining 4,707 were vacant. Of the occupied housing units, the percentage of these houses occupied by owners (also known as the homeownership rate) was 78.8% while renters occupied 21.2%. The average household size of owner-occupied houses was 2.96 and in renter-occupied houses it was 2.28.

4.8% of householders of these occupied houses had moved into their house since 2021, while 4.9% moved into their house in 1989 or earlier. Households without a vehicle available for personal use comprised 2.1% and another 28.5% had three or more vehicles available for use.

The following chart provides the primary fuel used to heat houses in Williamson County, Tennessee:

In 2020-2024, the median property value for owner-occupied houses in Williamson County, Tennessee was $751,900.

Of the owner-occupied households, 68.4 % had a mortgage. 31.6% 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 $2,642 and for owners without a mortgage it was $717.

For renter-occupied houses, the median gross rent for Williamson County, Tennessee was $1,969. 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.