Williamson County, Tennessee

6 cities & places have their primary county here.

Population: 254,609
Median household income: $131,202
Median home value: $673,700

Williamson County is a county in Tennessee with a population of 254,609. 6 cities and places have their primary county here. Its median household income of $131,202 runs above the Tennessee figure of $67,097.

From 2019 to 2023, Williamson County's population grew 13.0% from 225,389 to 254,609, while its median household income rose 16.1% from $112,962 to $131,202.

The largest age group is 5 to 17, 20.8% of residents. White (non-Hispanic) residents are the largest group, 81.5% of the population.

Demographics

ACS 2019–2023

Population: 254,609
Median age: 40.3 yrs
Median household income: $131,202
Median home value: $673,700
Median gross rent: $1,895
Housing units: 94,418
Homeownership rate: 79.8%
Bachelor's degree or higher: 61.8%
Unemployment rate: 2.0%

Trends

ACS 5-year · 2019–2023

Population

225,389254,609

Median household income

$112,962$131,202

Median home value

$449,000$673,700

Median gross rent

$1,500$1,895

Year	Population	Median household income	Median home value	Median gross rent
2019	225,389	$112,962	$449,000	$1,500
2020	232,380	$111,196	$471,300	$1,596
2021	242,386	$116,492	$497,500	$1,670
2022	248,897	$125,943	$611,100	$1,817
2023	254,609	$131,202	$673,700	$1,895

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.4%

5 to 1720.8%

18 to 247.9%

25 to 348.9%

35 to 4414.7%

45 to 5415.1%

55 to 6412.8%

65 to 748.9%

75 and over5.4%

	Count	Share
Under 5	13,846	5.4%
5 to 17	52,998	20.8%
18 to 24	20,145	7.9%
25 to 34	22,591	8.9%
35 to 44	37,508	14.7%
45 to 54	38,545	15.1%
55 to 64	32,669	12.8%
65 to 74	22,572	8.9%
75 and over	13,735	5.4%

Race & ethnicity

	Count	Share
White (non-Hispanic)	207,584	81.5%
Black or African American	9,670	3.8%
American Indian & Alaska Native	80	0.0%
Asian	13,115	5.2%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	1,269	0.5%
Two or more races	8,082	3.2%
Hispanic or Latino (any race)	14,809	5.8%

Educational attainment (age 25+)

No high school diploma4.1%

High school graduate13.2%

Some college or associate's20.9%

Bachelor's degree38.3%

Graduate or professional degree23.5%

	Count	Share
No high school diploma	6,820	4.1%
High school graduate	22,146	13.2%
Some college or associate's	35,005	20.9%
Bachelor's degree	64,211	38.3%
Graduate or professional degree	39,438	23.5%

Commute to work

Mean travel time to work: 28 min

Drove alone66.9%

Carpooled5.3%

Public transit0.1%

Walked0.7%

Bicycle0.0%

Worked from home25.8%

Other means1.1%

How workers get to work

	Count	Share
Drove alone	85,543	66.9%
Carpooled	6,789	5.3%
Public transit	97	0.1%
Walked	948	0.7%
Bicycle	48	0.0%
Worked from home	32,955	25.8%
Other means	1,448	1.1%

Travel time

	Count	Share
Under 15 min	18,228	19.2%
15 to 29 min	34,304	36.2%
30 to 44 min	26,843	28.3%
45 to 59 min	10,173	10.7%
60+ min	5,325	5.6%

Households

Average household size: 2.80
Poverty rate: 4.5% (11,423 of 253,281)

	Count	Share
Family households	70,473	77.7%
Nonfamily households	20,243	22.3%

Housing

Median year structure built: 2001

Occupancy

	Count	Share
Occupied	90,716	96.1%
Vacant	3,702	3.9%

Tenure (of occupied units)

	Count	Share
Owner-occupied	72,370	79.8%
Renter-occupied	18,346	20.2%

1-unit, detached78.1%

1-unit, attached5.3%

2 to 4 units2.3%

5 to 19 units5.4%

20 or more units7.2%

Mobile home & other1.7%

Units in structure

	Count	Share
1-unit, detached	73,715	78.1%
1-unit, attached	5,029	5.3%
2 to 4 units	2,183	2.3%
5 to 19 units	5,143	5.4%
20 or more units	6,781	7.2%
Mobile home & other	1,567	1.7%

Geography

County GEOID: 47187
State: Tennessee
Land area: 583 sq mi
Water area: 1.16 sq mi
Center point: 35.8948, -86.8979