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Williamson County, Tennessee Population 2021
Williamson County, Tennessee's estimated population is 251,280 with a growth rate of 2.63% in the past year according to the most recent United States census data. Williamson County, Tennessee is the 7th largest county inTennessee. The 2010 Population was 184,143 and has seen a growth of 36.46% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 251,280 | 6,434 | 2.63% |
| 2020 | 244,846 | 6,434 | 2.70% |
| 2019 | 238,412 | 6,434 | 2.77% |
| 2018 | 231,978 | 5,930 | 2.62% |
| 2017 | 226,048 | 7,145 | 3.26% |
| 2016 | 218,903 | 7,298 | 3.45% |
| 2015 | 211,605 | 6,271 | 3.05% |
| 2014 | 205,334 | 6,191 | 3.11% |
| 2013 | 199,143 | 5,932 | 3.07% |
| 2012 | 193,211 | 4,710 | 2.50% |
| 2011 | 188,501 | 4,358 | 2.37% |
| 2010 | 184,143 | 103,122 | 127.28% |
| 1990 | 81,021 | 22,913 | 39.43% |
| 1980 | 58,108 | 23,778 | 69.26% |
| 1970 | 34,330 | 9,063 | 35.87% |
| 1960 | 25,267 | 960 | 3.95% |
| 1950 | 24,307 | -913 | -3.62% |
| 1940 | 25,220 | 2,375 | 10.40% |
| 1930 | 22,845 | -564 | -2.41% |
| 1920 | 23,409 | -804 | -3.32% |
| 1910 | 24,213 | -2,216 | -8.38% |
| 1900 | 26,429 | 108 | 0.41% |
| 1890 | 26,321 | -1,992 | -7.04% |
| 1880 | 28,313 | 2,985 | 11.79% |
| 1870 | 25,328 | 1,501 | 6.30% |
| 1860 | 23,827 | -3,374 | -12.40% |
| 1850 | 27,201 | 195 | 0.72% |
| 1840 | 27,006 | 368 | 1.38% |
| 1830 | 26,638 | 5,998 | 29.06% |
| 1820 | 20,640 | 7,487 | 56.92% |
| 1810 | 13,153 | 10,285 | 358.61% |
| 1800 | 2,868 | 0.00% |
2021 Growth Rate
2.63% (6,434)
County Website
State
Founded
October 26, 1799
County Seat
Lat./Long.
2010 Population
184,143
Growth Since 2010
36.46% (67,137)
| Race | Population | Percentage |
|---|---|---|
| White | 200,077 | 88.77% |
| Asian | 9,495 | 4.21% |
| Black or African American | 9,281 | 4.12% |
| Two or More Races | 5,291 | 2.35% |
| Some Other Race | 958 | 0.43% |
| American Indian and Alaska Native | 227 | 0.10% |
| Native Hawaiian and Other Pacific Islander | 60 | 0.03% |
Williamson County, Tennessee Population Pyramid $2021
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| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 77,855 | 2.89 | 80.6 |
| Married | 55,068 | 3.29 | 88.4 |
| Non Family | 15,127 | 1.27 | 59.3 |
| Female | 5,858 | 3.16 | 65 |
| Male | 1,802 | 3.25 | 71.1 |
3.24
Average Family Size
2.89
Average Household Size
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 2,243 | 1.53% |
| 9th to 12th Grade | 4,585 | 3.13% |
| High School Graduate | 19,402 | 13.26% |
| Some College | 23,041 | 15.74% |
| Associates Degree | 9,508 | 6.50% |
| Bachelors Degree | 55,274 | 37.77% |
| Graduate Degree | 32,292 | 22.07% |
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Williamson County, Tennessee Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 126,256 | 121,715 | 76,633 |
| Black | 6,253 | 5,482 | 2,560 |
| Asian | 6,189 | 5,977 | 5,077 |
| Hispanic | 5,482 | 4,193 | 1,962 |
| 2+ Races | 2,056 | 2,015 | 1,268 |
| Other Race | 555 | 516 | 249 |
| Native American | 179 | 161 | 66 |
| Islander | 34 | 34 |
The highest rate of high school graduation is among islander people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 82.03%.
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$61,870
Average Earnings
$85,763
Average Male
$43,815
Average Female
Williamson County, Tennessee Language by Age
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Williamson County, Tennessee Language
91.49% of Williamson County, Tennessee residents speak only English, while 8.51% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.62% of the population.
Williamson County, Tennessee Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 189,972 | 6,539 | 3.44% |
| Hispanic | 10,736 | 1,314 | 12.24% |
| Black | 9,242 | 1,031 | 11.16% |
| Asian | 9,473 | 636 | 6.71% |
| Multiple | 5,172 | 277 | 5.36% |
| Other | 951 | 118 | 12.41% |
4.35%
Overall Poverty Rate
3.51%
Male Poverty Rate
5.16%
Female Poverty Rate
Poverty in Williamson County, Tennessee
The race most likely to be in poverty in Williamson County, Tennessee is Other, with 12.41% below the poverty level.
The race least likely to be in poverty in Williamson County, Tennessee is White, with 3.44% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.01%. Among those working part-time, it was 6.02%, and for those that did not work, the poverty rate was 8.81%.
Williamson County, Tennessee Marital Status
Marriage Rates
64.6%
Overall Marriage Rate
67.7%
Male Marriage Rate
61.8%
Female Marriage Rate
Williamson County, Tennessee Married by Age and Sex
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Williamson County, Tennessee Marriage
The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.
Williamson County, Tennessee Marital Status by Race
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| Name | Veterans | % of Total |
|---|---|---|
| White | 9,158 | 6.26% |
| Black | 371 | 5.28% |
| 2+ Races | 255 | 9.74% |
| Asian | 138 | 2.04% |
| Hispanic | 126 | 1.88% |
| Islander | 6 | 17.65% |
Williamson County, Tennessee Veterans by Education
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2.23%
Veteran Poverty Rate
22.19%
Veteran Disability Rate
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68.8%
Labor Force Participation
66.8%
Employment Rate
2.8%
Unemployment Rate
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Origin of Non-Citizens
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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
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41.07%
Born in Williamson County, Tennessee
92.39%
Native Born
7.61%
Foreign Born
3.93%
Non Citizen
3.68%
Naturalized
Place of Birth
92.39% of Williamson County, Tennessee residents were born in the United States, with 41.07% having been born in Tennessee. 3.93% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990