CensusEasy
COUNTY

Williamson County

Tennessee · 272,061 residents (2025 est.) · 582.865 sq mi
Time machine
COMPARE TO
Compare
The short version

Williamson County is significantly wealthier than the US average, with a median household income of $135,594. The county has more than doubled in size since 2000, adding 133,713 residents. 63% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value has more than tripled since 2000, reaching $751,900. Poverty is rare here, at 4.6% of residents. It ranks in the top 1% of US counties for household income.

At a glance
Wealthier
above the US median
US median: $82,259
Mid-age
median age 40.4
US median: 38.9
More educated
63% hold a bachelor's degree
US average: 36%
Less affordable
home values up 102%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

260,351
+106%since 2000
from 126,638 in 2000
1990 – 2025
447 / sq mi
+57%since 2009
from 284 / sq mi in 2009
US average: 281
40.4
+12%since 2000
from 36.2 in 2000
US average: 38.9

PEP 2025 EST:272,061 residents (Census Bureau Vintage 2025, released March 2026)

Population, 19902024
63K117K171K224K278K1990201020202024Williamson County
2024260K
1990201020202024
Age distribution, 2024
Under 55.3%(13,726)
US avg: 5.6%
5 to 97.3%(18,974)
US avg: 6%
10 to 148%(20,751)
US avg: 6.4%
15 to 197.7%(20,026)
US avg: 6.6%
20 to 245.7%(14,771)
US avg: 6.5%
25 to 348.7%(22,709)
US avg: 13.7%
35 to 4414.7%(38,247)
US avg: 13.2%
45 to 5415.1%(39,418)
US avg: 12.2%
55 to 6412.8%(33,325)
US avg: 12.7%
65 to 749%(23,525)
US avg: 10.2%
75 to 844.4%(11,380)
US avg: 5.1%
85 and over1.3%(3,499)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$135,594
+8%inflation adjusted, since 2000
from $69,104 in 2000
US average: $82,259
1990 – 2024
$66,219
+104%since 2000
from $32,496 in 2000
US average: $44,673
Households earning $100K+
74.1%
+16.2 ptssince 2009
from 57.9% in 2009
US average: 53.3%
4.6%
−0.1 ptssince 2000
from 4.7% in 2000
US average: 12.5%
0.451
+2%since 2010
from 0.442 in 2010
US average: 0.476
Workforce by industry, 2024
Other services11.6%
US avg: 6.7%
Information10.7%
US avg: 10.8%
Public administration9%
US avg: 4.8%
Retail trade7.3%
US avg: 9.9%
Wholesale trade4.9%
US avg: 6.9%
Finance & insurance3.4%
US avg: 5.9%
Professional, scientific, technical3.1%
US avg: 5.1%
Transportation & warehousing2.6%
US avg: 2.2%
Arts, entertainment, food2%
US avg: 1.9%
Agriculture, forestry, fishing0.4%
US avg: 1.6%
Construction0.3%
US avg: 1.2%
Education & health services0.3%
US avg: 0.9%
Manufacturing0.1%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

$751,900
+102%inflation adjusted, since 2000
from $204,700 in 2000
US average: $376,019
1990 – 2024
$1,969
+45%inflation adjusted, since 2000
from $744 in 2000
US average: $1,442
78.8%
−2.7 ptssince 2000
from 81.5% in 2000
21.2% rent
4.9%
−0.4 ptssince 2009
from 5.2% in 2009
US average: 10.0%
19.7%
−2.5 ptssince 2009
from 22.2% in 2009
US average: 22.9%
46.1%
+7.4 ptssince 2009
from 38.7% in 2009
US average: 47.4%
5.5
+49%since 2009
from 3.7 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
79
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Williamson County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic90.2%(114,177)
Black5.2%(6,543)
Hispanic / Latino2.5%(3,197)
Asian1.2%(1,571)
Other0%
2024
White, non-Hispanic80.9%(210,687)
Black3.9%(10,162)
Hispanic / Latino6%(15,611)
Asian5.3%(13,865)
Other3.9%(10,026)
42
+43%since 2009
from 29 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
25
−16%since 2020
from 29 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican2.9%(7,643)
Puerto Rican0.6%(1,515)
Honduran0.6%(1,441)
Cuban0.4%(1,105)
Spaniard0.2%(495)
Salvadoran0.2%(394)
Dominican0.1%(343)
Venezuelan0.1%(303)
Nicaraguan0.1%(265)
Colombian0.1%(251)
+ 9 more hispanic origin groups with data
Panamanian0.1%(206)
Guatemalan0.1%(152)
Peruvian0%(105)
Chilean0%(76)
Bolivian0%(71)
Argentine0%(49)
Asian origin
Asian Indian3.1%(8,066)
Chinese0.8%(2,189)
Korean0.4%(1,022)
Vietnamese0.2%(629)
Nepalese0.2%(411)
Japanese0.1%(372)
Filipino0.1%(350)
Pakistani0.1%(190)
Taiwanese0.1%(137)
Kazakh0%(49)
Thai0%(27)
+ 4 more asian origin groups with data
Mongolian0%(22)
Uzbek0%(22)
Laotian0%(12)
Pacific Islander origin
Samoan0%(88)
Fijian0%(66)
Chamorro0%(52)
Ancestry
English20.2%(52,498)
German12.9%(33,696)
Irish11.6%(30,305)
American8.2%(21,345)
Italian3.8%(9,993)
Scottish3.2%(8,362)
Scotch-Irish2.1%(5,528)
French2.1%(5,468)
Polish1.5%(3,842)
Swedish1%(2,536)
Welsh0.9%(2,268)
+ 41 more ancestry groups with data
Dutch0.8%(2,103)
Norwegian0.8%(2,073)
Arab0.7%(1,797)
British0.5%(1,363)
Greek0.5%(1,204)
Lebanese0.3%(862)
Russian0.3%(837)
Swiss0.3%(767)
Canadian0.3%(724)
Danish0.3%(716)
Hungarian0.3%(660)
Czech0.2%(585)
Romanian0.2%(559)
Lithuanian0.2%(487)
Finnish0.2%(480)
Iranian0.2%(423)
Ukrainian0.2%(423)
Portuguese0.1%(349)
Nigerian0.1%(336)
Belgian0.1%(324)
Slovak0.1%(319)
Egyptian0.1%(290)
Brazilian0.1%(268)
Austrian0.1%(254)
West Indian0.1%(240)
Iraqi0.1%(208)
Latvian0.1%(167)
Armenian0.1%(147)
Bulgarian0%(118)
Turkish0%(109)
Slovene0%(107)
Croatian0%(91)
Serbian0%(63)
Syrian0%(51)
Jamaican0%(51)
Kenyan0%(49)
Ethiopian0%(37)
Haitian0%(22)
RANKED:Largest English population · Largest German population · Largest Irish population · Largest American population · Largest Italian population
Section 05

Education

62.7%
+18.3 ptssince 2000
from 44.4% in 2000
US average: 35.6%
High school or higher
96.3%
+6.2 ptssince 2000
from 90.1% in 2000
US average: 89.6%
24.0%
+9.7 ptssince 2000
from 14.2% in 2000
US average: 14.0%
Section 06

Commute & transportation

27.9 min
+66%since 2000
from 16.8 min in 2000
US average: 26.5
64.9%
−15.5 ptssince 2009
from 80.4% in 2009
US average: 68.9%
5.1%
−4.8 ptssince 2009
from 9.9% in 2009
US average: 8.5%
0.1%
−0.4 ptssince 2009
from 0.5% in 2009
US average: 3.2%
28.3%
+20.9 ptssince 2009
from 7.4% in 2009
US average: 15.0%
0.5%
−0.3 ptssince 2009
from 0.9% in 2009
US average: 2.4%
0.0%
Unchangedsince 2009
from 0.1% in 2009
US average: 0.4%
2.1%
−0.2 ptssince 2009
from 2.3% in 2009
US average: 8.3%
Section 07

Work & employment

2.4%
−2.7 ptssince 2011
from 5.1% in 2011
US average: 5.2%
66.4%
−2.5 ptssince 2011
from 69.0% in 2011
US average: 63.5%
10.7%
−0.4 ptssince 2009
from 11.1% in 2009
US average: 13.1%
58.7%
−13.2 ptssince 2009
from 72.0% in 2009
US average: 42.5%
Section 08

People & community

49.5%
+0.1 ptssince 2009
from 49.4% in 2009
50.5%
−0.1 ptssince 2009
from 50.6% in 2009
8.5%
+3.0 ptssince 2009
from 5.5% in 2009
US average: 14.1%
5.1%
−43.6 ptssince 2009
from 48.7% in 2009
US average: 6.2%
8.2%
+0.8 ptssince 2012
from 7.4% in 2012
US average: 13.3%
4.4%
−89.5 ptssince 2013
from 93.9% in 2013
US average: 8.4%
96.0%
+5.7 ptssince 2017
from 90.3% in 2017
US average: 91.0%
90.2%
−1.9 ptssince 2016
from 92.1% in 2016
US average: 77.7%
3.8%
+0.7 ptssince 2016
from 3.1% in 2016
US average: 13.6%
Marital status
Men 15+
Never married26.9%(27,237)
Married65.8%(66,595)
Widowed2%(2,000)
Divorced5.3%(5,379)
Women 15+
Never married23.4%(24,762)
Married60.7%(64,202)
Widowed6.1%(6,432)
Divorced9.7%(10,293)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

Places similar to Williamson County

Head to head

Compare Williamson County to nearby counties

Frequently asked

How many people live in Williamson County, Tennessee?

Williamson County, Tennessee has about 260,351 residents according to the 2024 American Community Survey.

What is the median household income in Williamson County, Tennessee?

The typical household in Williamson County, Tennessee earns about $135,594 a year. Half of households make more than that, and half make less.

Is Williamson County, Tennessee expensive?

In Williamson County, Tennessee, the median home is worth about $751,900, and the typical rent is about $1,969 a month.

How educated are people in Williamson County, Tennessee?

About 62.7% of adults age 25 and over in Williamson County, Tennessee hold a bachelor's degree or higher.

What is the poverty rate in Williamson County, Tennessee?

About 4.6% of people in Williamson County, Tennessee live below the federal poverty line.

Has Williamson County, Tennessee grown since 1990?

Yes, Williamson County, Tennessee has grown since 1990. The population has added about 179,330 residents, a change of about 221 percent over that period.

Keep going

Explore from here

DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →