Population by Age in Williamson County
*Base on 2010 Data
| Total population | 422,679 | 100.00% |
| Under 5 years | 33,531 | 7.93% |
| 5 to 9 years | 35,550 | 8.41% |
| 10 to 14 years | 33,793 | 7.99% |
| 15 to 19 years | 28,311 | 6.70% |
| 20 to 24 years | 22,067 | 5.22% |
| 25 to 29 years | 29,211 | 6.91% |
| 30 to 34 years | 34,336 | 8.12% |
| 35 to 39 years | 36,361 | 8.60% |
| 40 to 44 years | 33,849 | 8.01% |
| 45 to 49 years | 31,608 | 7.48% |
| 50 to 54 years | 26,458 | 6.26% |
| 55 to 59 years | 21,724 | 5.14% |
| 60 to 64 years | 18,199 | 4.31% |
| 65 to 69 years | 13,515 | 3.20% |
| 70 to 74 years | 9,208 | 2.18% |
| 75 to 79 years | 6,494 | 1.54% |
| 80 to 84 years | 4,482 | 1.06% |
| 85 years and over | 3,982 | 0.94% |
Male Population in Williamson County
*Base on 2010 Data
| Male population | 208,032 | 49.22% |
| Under 5 years | 17,056 | 4.04% |
| 5 to 9 years | 18,244 | 4.32% |
| 10 to 14 years | 17,430 | 4.12% |
| 15 to 19 years | 14,553 | 3.44% |
| 20 to 24 years | 11,019 | 2.61% |
| 25 to 29 years | 14,137 | 3.34% |
| 30 to 34 years | 16,570 | 3.92% |
| 35 to 39 years | 18,087 | 4.28% |
| 40 to 44 years | 16,938 | 4.01% |
| 45 to 49 years | 15,675 | 3.71% |
| 50 to 54 years | 13,017 | 3.08% |
| 55 to 59 years | 10,251 | 2.43% |
| 60 to 64 years | 8,365 | 1.98% |
| 65 to 69 years | 6,292 | 1.49% |
| 70 to 74 years | 4,304 | 1.02% |
| 75 to 79 years | 2,937 | 0.69% |
| 80 to 84 years | 1,865 | 0.44% |
| 85 years and over | 1,292 | 0.31% |
Female Population in Williamson County
*Base on 2010 Data
| Female population | 214,647 | 50.78% |
| Under 5 years | 16,475 | 3.90% |
| 5 to 9 years | 17,306 | 4.09% |
| 10 to 14 years | 16,363 | 3.87% |
| 15 to 19 years | 13,758 | 3.25% |
| 20 to 24 years | 11,048 | 2.61% |
| 25 to 29 years | 15,074 | 3.57% |
| 30 to 34 years | 17,766 | 4.20% |
| 35 to 39 years | 18,274 | 4.32% |
| 40 to 44 years | 16,911 | 4.00% |
| 45 to 49 years | 15,933 | 3.77% |
| 50 to 54 years | 13,441 | 3.18% |
| 55 to 59 years | 11,473 | 2.71% |
| 60 to 64 years | 9,834 | 2.33% |
| 65 to 69 years | 7,223 | 1.71% |
| 70 to 74 years | 4,904 | 1.16% |
| 75 to 79 years | 3,557 | 0.84% |
| 80 to 84 years | 2,617 | 0.62% |
| 85 years and over | 2,690 | 0.64% |
Median Age in Williamson County
*Base on 2010 Data
| Both | 34.20% | |
| Male | 33.50% | |
| Female | 34.90% |
Race in Williamson County
*Base on 2010 Data
| Total | 422,679 | 100.00% |
| Population of one race | 409,198 | 96.81% |
| White | 330,191 | 78.12% |
| Black or African American | 26,196 | 6.20% |
| American Indian and Alaska Native | 2,629 | 0.62% |
| Asian | 20,433 | 4.83% |
| Asian Indian | 7,002 | 1.66% |
| Chinese | 3,459 | 0.82% |
| Filipino | 1,805 | 0.43% |
| Japanese | 530 | 0.13% |
| Korean | 1,797 | 0.43% |
| Vietnamese | 2,983 | 0.71% |
| Other Asian | 2,857 | 0.68% |
| Native Hawaiian and Other Pacific Islander | 413 | 0.10% |
| Native Hawaiian | 128 | 0.03% |
| Guamanian or Chamorro | 114 | 0.03% |
| Samoan | 62 | 0.01% |
| Other Pacific Islander | 109 | 0.03% |
| Some Other Race | 29,336 | 6.94% |
| Population of Two or More Races | 13,481 | 3.19% |
| White; American Indian and Alaska Native | 2,050 | 0.49% |
| White; Asian | 2,894 | 0.68% |
| White; Black or African American | 2,575 | 0.61% |
| White; Some Other Race | 3,181 | 0.75% |
The Population 16 Years in Williamson County
*Base on 2010 Data
| Total | 313,548 | 100.00% |
| Male | 152,095 | 48.51% |
| Female | 161,453 | 51.49% |
The Population 18 Years in Williamson County
*Base on 2010 Data
| Total | 301,227 | 100.00% |
| Male | 145,710 | 48.37% |
| Female | 155,517 | 51.63% |
The Population 21 Years in Williamson County
*Base on 2010 Data
| Total | 287,233 | 100.00% |
| Male | 138,516 | 48.22% |
| Female | 148,717 | 51.78% |
The Population 62 Years in Williamson County
*Base on 2010 Data
| Total | 48,287 | 100.00% |
| Male | 21,605 | 44.74% |
| Female | 26,682 | 55.26% |
The Population 65 Years in Williamson County
*Base on 2010 Data
| Total | 37,681 | 100.00% |
| Male | 16,690 | 44.29% |
| Female | 20,991 | 55.71% |
Race (total races tallied) in Williamson County
*Base on 2010 Data
| White alone or in combination with one or more other races | 342,010 | 78.23% |
| Black or African American alone or in combination with one or more other races | 30,219 | 6.91% |
| American Indian and Alaska Native alone or in combination with one or more other races | 5,566 | 1.27% |
| Asian alone or in combination with one or more other races | 24,537 | 5.61% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 1,117 | 0.26% |
| Some Other Race alone or in combination with one or more other races | 33,727 | 7.71% |
Hispanic or Latino by Specific Origin in Williamson County
*Base on 2010 Data
| Total | 422,679 | 100.00% |
| Hispanic or Latino (of any race) | 98,034 | 23.19% |
| Mexican | 80,500 | 19.05% |
| Puerto Rican | 2,901 | 0.69% |
| Cuban | 957 | 0.23% |
| Other Hispanic or Latino | 13,676 | 3.24% |
| Not Hispanic or Latino | 324,645 | 76.81% |
Hispanic or Latino and Race in Williamson County
*Base on 2010 Data
| Total | 422,679 | 100.00% |
| Hispanic or Latino | 98,034 | 23.19% |
| White alone | 60,710 | 14.36% |
| Black or African American alone | 1,452 | 0.34% |
| American Indian and Alaska Native alone | 1,289 | 0.30% |
| Asian alone | 349 | 0.08% |
| Native Hawaiian and Other Pacific Islander alone | 59 | 0.01% |
| Some Other Race alone | 28,675 | 6.78% |
| Two or More Races | 5,500 | 1.30% |
| Not Hispanic or Latino | 324,645 | 76.81% |
| White alone | 269,481 | 63.76% |
| Black or African American alone | 24,744 | 5.85% |
| American Indian and Alaska Native alone | 1,340 | 0.32% |
| Asian alone | 20,084 | 4.75% |
| Native Hawaiian and Other Pacific Islander alone | 354 | 0.08% |
| Some Other Race alone | 661 | 0.16% |
| Two or More Races | 7,981 | 1.89% |
Relationship in Williamson County
*Base on 2010 Data
| Total | 422,679 | 100.00% |
| In households | 417,582 | 98.79% |
| Householder | 152,606 | 36.10% |
| Spouse | 88,423 | 20.92% |
| Child | 135,625 | 32.09% |
| Own child under 18 years | 111,481 | 26.37% |
| Other relatives | 21,647 | 5.12% |
| Under 18 years | 8,122 | 1.92% |
| 65 years and over | 3,344 | 0.79% |
| Nonrelatives | 19,281 | 4.56% |
| Under 18 years | 1,551 | 0.37% |
| 65 years and over | 592 | 0.14% |
| Unmarried partner | 9,028 | 2.14% |
| In group quarters | 5,097 | 1.21% |
| Institutionalized population | 3,862 | 0.91% |
| Male | 2,319 | 0.55% |
| Female | 1,543 | 0.37% |
| Noninstitutionalized population | 1,235 | 0.29% |
| Male | 471 | 0.11% |
| Female | 764 | 0.18% |
Households by Type in Williamson County
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 152,606 | 100.00% |
| Family households (families) | 111,514 | 73.07% |
| With own children under 18 years | 59,624 | 39.07% |
| Husband-wife family | 88,423 | 57.94% |
| With own children under 18 years | 45,310 | 29.69% |
| Male householder, no wife present | 6,564 | 4.30% |
| With own children under 18 years | 3,763 | 2.47% |
| Female householder, no husband present | 16,527 | 10.83% |
| With own children under 18 years | 10,551 | 6.91% |
| Nonfamily households | 41,092 | 26.93% |
| Householder living alone | 32,315 | 21.18% |
| Male | 14,418 | 9.45% |
| 65 years and over | 2,026 | 1.33% |
| Female | 17,897 | 11.73% |
| 65 years and over | 6,109 | 4.00% |
Households with individuals under 18 years in Williamson County
*Base on 2010 Data
| Total | 63,870 | 41.85% |
Households with individuals under 65 years in Williamson County
*Base on 2010 Data
| Total | 26,611 | 17.44% |
Average Household Size in Williamson County
*Base on 2010 Data
| Average household size | 3 | % |
Average Family Size in Williamson County
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in Williamson County
*Base on 2010 Data
| Total | 162,773 | 100.00% |
| Occupied housing units | 152,606 | 93.75% |
| Vacant housing units | 10,167 | 6.25% |
| For rent | 4,558 | 2.80% |
| Rented, not occupied | 237 | 0.15% |
| For sale only | 2,205 | 1.35% |
| Sold, not occupied | 483 | 0.30% |
| For seasonal, recreational, or occasional use | 858 | 0.53% |
| All other vacants | 1,826 | 1.12% |
Homeowner Vacancy Rate in Williamson County
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 2.00% |
Rental Vacancy Rate in Williamson County
*Base on 2010 Data
| Rental vacancy rate (percent) | 8.80% |
Housing Tenure(Occupied housing units) in Williamson County
*Base on 2010 Data
| Total | 152,606 | 100.00% |
| Owner-occupied housing units | 105,784 | 69.32% |
| Renter-occupied housing units | 46,822 | 30.68% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in Williamson County
*Base on 2010 Data
| Owner-occupied housing units | 301,180 | 72.12% |
| Renter-occupied housing units | 116,402 | 27.88% |
Average Household Size of Occupied Housing Units by Tenure in Williamson County
*Base on 2010 Data
| Owner occupied | 3 | % |
| Renter occupied | 2 | % |