Hays County's 2026 population is estimated at 312,693, reflecting a 3.42% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Hays County is the 19th largest county in Texas. The 2010 population was 158,086 and has grown 97.8% since 2010.
Data after 2023 is projected based on recent change
Overall: 34.1 years
Female: 34.6 years
Male: 33.7 years
There are 208,418 adults, (32,662 of whom are seniors) in Hays County.
Female: 134,735 (50.2%)
Male: 133,903 (49.8%)
The racial composition of Hays County includes 60.51% White, 7.55% other race, 4.12% Black or African American, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 162,563 | 60.51% |
| Two or more races | 66,885 | 24.9% |
| Other race | 20,290 | 7.55% |
| Black or African American | 11,062 | 4.12% |
| Asian | 5,497 | 2.05% |
| Native American | 1,966 | 0.73% |
| Native Hawaiian or Pacific Islander | 375 | 0.14% |
Hays County 's average per capita income is $56,343. Household income levels show a median of $89,097. The poverty rate stands at 12.13%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $129,778 | $161,352 |
| Families | $112,128 | $143,418 |
| Households | $89,097 | $117,544 |
| Non Families | $48,304 | $66,506 |
Average Income
Median Household Income
Poverty Rate