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Williamson County, Texas's estimated population is 638,727 with a growth rate of 3.92% in the past year according to the most recent United States census data. Williamson County, Texas is the 13th largest county in Texas. The 2010 Population was 426,287 and has seen a growth of 49.83% since this time.
| Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2021 | 638,727 | 24,088 | 3.92% |
| 2020 | 614,639 | 24,088 | 4.08% |
| 2019 | 590,551 | 24,088 | 4.25% |
| 2018 | 566,463 | 20,212 | 3.70% |
| 2017 | 546,251 | 18,629 | 3.53% |
| 2016 | 527,622 | 20,489 | 4.04% |
| 2015 | 507,133 | 19,220 | 3.94% |
| 2014 | 487,913 | 17,896 | 3.81% |
| 2013 | 470,017 | 14,267 | 3.13% |
| 2012 | 455,750 | 13,719 | 3.10% |
| 2011 | 442,031 | 15,744 | 3.69% |
| 2010 | 426,287 | 286,736 | 205.47% |
| 1990 | 139,551 | 63,030 | 82.37% |
| 1980 | 76,521 | 39,216 | 105.12% |
| 1970 | 37,305 | 2,261 | 6.45% |
| 1960 | 35,044 | -3,809 | -9.80% |
| 1950 | 38,853 | -2,845 | -6.82% |
| 1940 | 41,698 | -2,448 | -5.55% |
| 1930 | 44,146 | 1,212 | 2.82% |
| 1920 | 42,934 | 706 | 1.67% |
| 1910 | 42,228 | 4,156 | 10.92% |
| 1900 | 38,072 | 12,163 | 46.95% |
| 1890 | 25,909 | 10,754 | 70.96% |
| 1880 | 15,155 | 8,787 | 137.99% |
| 1870 | 6,368 | 1,839 | 40.60% |
| 1860 | 4,529 | 2,961 | 188.84% |
| 1850 | 1,568 | 0.00% |
| Race | Population | Percentage |
|---|---|---|
| White | 436,477 | 79.71% |
| Asian | 37,395 | 6.83% |
| Black or African American | 35,054 | 6.40% |
| Two or More Races | 22,900 | 4.18% |
| Some Other Race | 13,845 | 2.53% |
| American Indian and Alaska Native | 1,520 | 0.28% |
| Native Hawaiian and Other Pacific Islander | 413 | 0.08% |
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 180,160 | 3.02 | 68.4 |
| Married | 104,975 | 3.58 | 82 |
| Non Family | 50,203 | 1.37 | 50.1 |
| Female | 17,684 | 3.96 | 45.3 |
| Male | 7,298 | 3.92 | 55.1 |
3.55
Average Family Size
3.02
Average Household Size
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 11,363 | 3.14% |
| 9th to 12th Grade | 13,137 | 3.63% |
| High School Graduate | 74,262 | 20.51% |
| Some College | 82,385 | 22.75% |
| Associates Degree | 31,337 | 8.65% |
| Bachelors Degree | 99,134 | 27.38% |
| Graduate Degree | 50,460 | 13.94% |
| Name | Total | High School | Bachelors |
|---|---|---|---|
| White | 231,031 | 223,500 | 101,776 |
| Hispanic | 75,725 | 62,326 | 19,310 |
| Asian | 25,369 | 23,495 | 18,039 |
| Black | 22,734 | 21,392 | 7,387 |
| Other Race | 9,335 | 7,764 | 2,261 |
| Multiple Races | 9,037 | 8,387 | 3,632 |
| Native American | 1,058 | 875 | 245 |
| Islander | 354 | 354 | 174 |
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 71.11%.
$48,267
Average Earnings
$57,340
Average Male
$39,054
Average Female
78.24% of Williamson County, Texas residents speak only English, while 21.76% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 13.97% of the population.
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 322,461 | 14,659 | 4.55% |
| Hispanic | 132,165 | 13,400 | 10.14% |
| Black | 34,445 | 4,148 | 12.04% |
| Asian | 37,341 | 1,687 | 4.52% |
| Multiple | 22,676 | 1,499 | 6.61% |
| Other | 13,597 | 531 | 3.91% |
| Native | 1,468 | 81 | 5.52% |
| Islander | 392 | 80 | 20.41% |
6.42%
Overall Poverty Rate
5.82%
Male Poverty Rate
7.00%
Female Poverty Rate
The race most likely to be in poverty in Williamson County, Texas is Islander, with 20.41% below the poverty level.
The race least likely to be in poverty in Williamson County, Texas is Other, with 3.91% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.66%. Among those working part-time, it was 10.33%, and for those that did not work, the poverty rate was 11.01%.
53.3%
Overall Marriage Rate
55.5%
Male Marriage Rate
51.3%
Female Marriage Rate
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
| Name | Veterans | % of Total |
|---|---|---|
| White | 29,961 | 9.15% |
| Hispanic | 5,317 | 5.89% |
| Black | 2,842 | 10.93% |
| 2 or More | 965 | 8.53% |
| Other | 571 | 5.18% |
| Asian | 378 | 1.38% |
| Indian | 118 | 10.25% |
| Hawaiian | 89 | 28.16% |
3.33%
Veteran Poverty Rate
24.52%
Veteran Disability Rate
69.7%
Labor Force Participation
66.2%
Employment Rate
4.8%
Unemployment Rate
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
87.40%
Native Born
12.60%
Foreign Born
6.73%
Non Citizen
5.87%
Naturalized
87.40% of Williamson County, Texas residents were born in the United States, with 51.65% having been born in Texas. 6.73% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.