Williamson County, Tennessee Population 2024

270,027

Williamson County, Tennessee's estimated 2024 population is 270,027 with a growth rate of 1.74% in the past year according to the most recent United States census data. Williamson County, Tennessee is the 6th largest county in Tennessee. The 2010 population was 184,082 and has seen a growth of 46.69% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029293,0574,6061.6%
2028288,4514,6061.62%
2027283,8454,6061.65%
2026279,2394,6061.68%
2025274,6334,6061.71%
2024270,0274,6061.74%
2023265,4214,6061.77%
2022260,8154,6061.8%
2021256,2096,6712.67%
2020249,53810,9824.6%
2019238,5566,0392.6%
2018232,5176,1442.71%
2017226,3737,2683.32%
2016219,1057,3923.49%
2015211,7136,3183.08%
2014205,3956,2183.12%
2013199,1775,9703.09%
2012193,2074,7432.52%
2011188,4644,3822.38%
2010184,08200%
199081,02122,91339.43%
198058,10823,77869.26%
197034,3309,06335.87%
196025,2679603.95%
195024,307-913-3.62%
194025,2202,37510.4%
193022,845-564-2.41%
192023,409-804-3.32%
191024,213-2,216-8.38%
190026,4291080.41%
189026,321-1,992-7.04%
188028,3132,98511.79%
187025,3281,5016.3%
186023,827-3,374-12.4%
185027,2011950.72%
184027,0063681.38%
183026,6385,99829.06%
182020,6407,48756.92%
181013,15310,285358.61%
18002,868-290,189-99.02%
showing: 40 rows
2024 Growth Rate
1.74% (4,606)
County Website
Williamson County
County Seat
2020 Population
249,538
Area
583 mi²
Density
463 people/mi²
Growth Since 2020
8.21% (20,489)
Founded
October 26, 1799

Williamson County, Tennessee Population 2024

Population by Race

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Race
Population
Percentage (of total)
White210,24284.47%
Two or more races12,9025.18%
Asian12,8085.15%
Black or African American9,7293.91%
Other race2,6601.07%
Native American4970.2%
Native Hawaiian or Pacific Islander590.02%

White

Two or more races

Asian

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Williamson County, Tennessee Population by Race

Williamson County, Tennessee Population Pyramid 2024

Williamson County, Tennessee Median Age

40

Total

39.2

Male

40.6

Female

Williamson County, Tennessee Adults

There are 183,235 adults, (34,551 of whom are seniors) in Williamson County, Tennessee.

Williamson County, Tennessee Age Dependency

67.4

Age Dependency Ratio

23.2

Old Age Dependency Ratio

44.2

Child Dependency Ratio

Williamson County, Tennessee Sex Ratio

Female125,83150.56%
Male123,06649.44%

Williamson County, Tennessee Population by Age

Williamson County, Tennessee Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All88,2382.8179.920.1
Married60,4323.2887.612.4
Non Family19,0751.235941
Female6,7303.1673.126.9
Male2,0012.8269.430.6

3.21

Average Family Size

2.81

Average Household Size

79.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Williamson County, Tennessee Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Williamson County, Tennessee Educational Attainment by Sex (over 25)

Williamson County, Tennessee Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 96.95%.

The highest rate of bachelors degrees is among asian people with a rate of 81.17%.

Williamson County, Tennessee Educational Attainment by Race

All

Male

Female

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$72,114

Average Earnings

$98,193

Average Male

$52,185

Average Female

Williamson County, Tennessee Earnings by Educational Attainment

Williamson County, Tennessee Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Williamson County, Tennessee Language

91.03% of Williamson County, Tennessee residents speak only English, while 8.97% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.63% of the population.

Williamson County, Tennessee Language

Williamson County, Tennessee Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White205,0087,2333.53%
Black9,5191,30713.73%
Hispanic12,6821,2529.87%
Multiple12,8245724.46%
Asian12,7945003.91%
Other2,6502208.3%
Islander5959100%

4.17%

Overall Poverty Rate

3.45%

Male Poverty Rate

4.88%

Female Poverty Rate

Poverty in Williamson County, Tennessee

The race most likely to be in poverty in Williamson County, Tennessee is Islander, with 100% below the poverty level.

The race least likely to be in poverty in Williamson County, Tennessee is White, with 3.53% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.75%. Among those working part-time, it was 6.96%, and for those that did not work, the poverty rate was 8.44%.

Williamson County, Tennessee Poverty

rate

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Rate
Poverty
Less Than 9th Grade16.43%
High School9.96%
Some College4.41%
Bachelors or Greater1.54%

Williamson County, Tennessee Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed19.58%
Male Unemployed7.18%
Female Employed3.44%
Male Employed1.77%

Williamson County, Tennessee Poverty Rate by Employment Status and Sex

Williamson County, Tennessee Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Williamson County, Tennessee Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

63.5%

Overall Marriage Rate

66.9%

Male Marriage Rate

60.2%

Female Marriage Rate

Williamson County, Tennessee Married by Age and Sex

male

female

Williamson County, Tennessee Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Williamson County, Tennessee Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Williamson County, Tennessee Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

10,029

Number of Veterans

9,438

Male Veterans

591

Female Veterans

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Williamson County, Tennessee Veterans by War

count

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Williamson County, Tennessee Veterans by Age

count

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Williamson County, Tennessee Veterans by Race

Williamson County, Tennessee Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.65%

Veteran Poverty Rate

21.27%

Veteran Disability Rate

Williamson County, Tennessee Veterans by Education

LaborForceParticipation

67.8%

Labor Force Participation

66.3%

Employment Rate

2.1%

Unemployment Rate

Williamson County, Tennessee Employment by Age

LaborForceParticipation

Williamson County, Tennessee Employment by Race

LaborForceParticipation

Williamson County, Tennessee Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

39.14%

Born in Williamson County, Tennessee

91.83%

Native Born

8.17%

Foreign Born

4.16%

Non Citizen

4.02%

Naturalized

Place of Birth

91.83% of Williamson County, Tennessee residents were born in the United States, with 39.14% having been born in Tennessee. 4.16% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Williamson County, Tennessee Place of Birth

Sources