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COUNTY · 2000 CENSUS

Williamson County

Tennessee · 126,638 residents · 583 sq mi
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The short version

Williamson County is a county of 126,638 people in Tennessee. Households here earn about 90% more than in Tennessee as a whole. 44% of adults hold a bachelor's degree, against 24% nationally. Since 1990 the county has risen by half, up 45,617 people. Home values have risen by half since 1990, reaching $204,700. Owners hold 81% of the housing stock.

At a glance
Wealthier
above the US median
US median: $42,589
Mid-age
median age 36.2
US median: 35.2
More educated
44% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
126,638
+56%since 1990
from 81,021 in 1990
1990 – 2025
Median age
36.2
+6%since 1990
from 34.1 in 1990
US average: 35.2
Land area
583 sq mi
Population, 1990 – 2024
63K117K171K224K278K19902000201020202024Williamson County
2024260K
1990201020202024
Age distribution, 2000
Under 57.2%(9,169)
US avg: 6.8%
5 to 98.4%(10,665)
US avg: 7.3%
10 to 148.8%(11,201)
US avg: 7.3%
15 to 197.2%(9,105)
US avg: 7.2%
20 to 244%(5,067)
US avg: 6.7%
25 to 3412.2%(15,505)
US avg: 14.2%
35 to 4419.4%(24,535)
US avg: 16%
45 to 5416.8%(21,243)
US avg: 13.4%
55 to 648.2%(10,337)
US avg: 8.6%
65 to 744.5%(5,691)
US avg: 6.5%
75 to 842.5%(3,111)
US avg: 4.4%
85 and over0.8%(1,009)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$69,104
+20%inflation adjusted, since 1990
from $43,615 in 1990
US average: $42,589
1990 – 2024
Per capita income
$32,496
+68%since 1990
from $19,339 in 1990
US average: $21,522
Poverty rate
4.7%
−1.0 ptssince 1990
from 5.8% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$204,700
+19%inflation adjusted, since 1990
from $130,900 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$744
+18%inflation adjusted, since 1990
from $480 in 1990
US average: $602
Owner-occupied
81.5%
+2.0 ptssince 1990
from 79.5% in 1990
18.5% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic92.3%(74,748)
Black6.7%(5,445)
Hispanic / Latino0.5%(440)
Asian0.6%(498)
2000
White, non-Hispanic90.2%(114,177)
Black5.2%(6,543)
Hispanic / Latino2.5%(3,197)
Asian1.2%(1,571)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

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)
Section 05

Education

Bachelor's degree or higher
44.4%
+10.1 ptssince 1990
from 34.2% in 1990
US average: 24.4%
High school or higher
90.1%
+8.2 ptssince 1990
from 81.8% in 1990
US average: 80.3%
Graduate degree
14.2%
+3.4 ptssince 1990
from 10.8% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
16.8 min
−33%since 1990
from 25.0 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married21%(9,704)
Married71.5%(33,097)
Widowed1.5%(688)
Divorced6.1%(2,820)
Women 15+
Never married17.4%(8,541)
Married67.3%(33,093)
Widowed6.4%(3,142)
Divorced9%(4,416)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured
4.4%
−1.7 ptssince 2013
from 6.1% in 2013
US average: 8.4%
Employer-based
71.0%
−0.9 ptssince 2020
from 71.9% in 2020
US average: 54.8%
Direct-purchase
16.7%
+0.2 ptssince 2020
from 16.5% in 2020
US average: 13.8%
Medicare
14.6%
+1.3 ptssince 2020
from 13.3% in 2020
US average: 18.4%
Medicaid
6.8%
+0.6 ptssince 2020
from 6.2% in 2020
US average: 20.9%
VA health care
1.3%
+0.2 ptssince 2020
from 1.1% in 2020
US average: 2.2%
Any private
85.3%
−0.4 ptssince 2020
from 85.7% in 2020
US average: 67.1%
Any public
20.7%
+2.1 ptssince 2020
from 18.6% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)30.5%(3,009)
US avg: 26.4%
Gulf War (1990s)25.9%(2,559)
US avg: 24.3%
Vietnam era31.8%(3,139)
US avg: 33.1%
Korean War4.8%(469)
US avg: 4.5%
World War II0.9%(91)
US avg: 1%

Share of the 9,865 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

Places similar to Williamson County

Forsyth County
Pop 282,805
Marin County
Pop 253,694
Frederick County
Pop 302,883
Washington County
Pop 286,895
Places similar to Williamson County
Head to head

Compare Williamson County to nearby counties

WILLIAMSON COUNTY VS
Davidson County
Income$77,853+13%
Home value$417,400+104%
Population745,904+174%
SEE FULL COMPARISON →
WILLIAMSON COUNTY VS
Maury County
Income$76,130+10%
Home value$355,700+74%
Population118,131−57%
SEE FULL COMPARISON →
WILLIAMSON COUNTY VS
Rutherford County
Income$85,470+24%
Home value$382,600+87%
Population386,352+42%
SEE FULL COMPARISON →
WILLIAMSON COUNTY VS
Cheatham County
Income$89,852+30%
Home value$338,700+65%
Population42,778−84%
SEE FULL COMPARISON →
Frequently asked

How many people live in Williamson County, Tennessee?

Williamson County, Tennessee has about 126,638 residents according to the 2000 Census.

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

The typical household in Williamson County, Tennessee earns about $69,104 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 $204,700, and the typical rent is about $744 a month.

How educated are people in Williamson County, Tennessee?

About 44.4% 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 4.7% 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 45,617 residents, a change of about 56 percent over that period.

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

How we source and harmonize this data →