Grimes County's 2026 population is estimated at 35,290, reflecting a 2.68% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Grimes County is the 88th largest county in Texas. The 2010 population was 26,624 and has grown 32.55% since 2010.
Data after 2023 is projected based on recent change
Overall: 40.1 years
Female: 40.8 years
Male: 39.9 years
There are 24,313 adults, (5,825 of whom are seniors) in Grimes County.
Female: 14,241 (45.4%)
Male: 17,099 (54.6%)
The racial composition of Grimes County includes 61.19% White, 11.44% Black or African American, 10.35% other race, and smaller percentages for Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 19,177 | 61.19% |
| Two or more races | 4,992 | 15.93% |
| Black or African American | 3,586 | 11.44% |
| Other race | 3,243 | 10.35% |
| Native American | 175 | 0.56% |
| Asian | 116 | 0.37% |
| Native Hawaiian or Pacific Islander | 51 | 0.16% |
Grimes County 's average per capita income is $47,893. Household income levels show a median of $69,803. The poverty rate stands at 14.57%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $92,406 | - |
| Families | $84,879 | $113,780 |
| Households | $69,803 | $96,294 |
| Non Families | $33,636 | $47,269 |
Average Income
Median Household Income
Poverty Rate
