Castro County's 2026 population is estimated at 7,480, reflecting a 0.67% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Castro County is the 181st largest county in Texas. The 2010 population was 8,125 and has grown -7.94% since 2010.
Data after 2023 is projected based on recent change
Overall: 34.5 years
Female: 34.1 years
Male: 34.9 years
There are 5,209 adults, (1,376 of whom are seniors) in Castro County.
Female: 3,592 (48.9%)
Male: 3,752 (51.1%)
The racial composition of Castro County includes 40.85% White, 12.89% other race, and smaller percentages for Black or African American, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Two or more races | 3,185 | 43.37% |
| White | 3,000 | 40.85% |
| Other race | 947 | 12.89% |
| Black or African American | 86 | 1.17% |
| Asian | 66 | 0.9% |
| Native American | 60 | 0.82% |
Castro County 's average per capita income is $40,265. Household income levels show a median of $56,776. The poverty rate stands at 19.19%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $79,886 | - |
| Families | $57,917 | $82,187 |
| Households | $56,776 | $76,146 |
| Non Families | $41,050 | $45,191 |
Average Income
Median Household Income
Poverty Rate
