Collin County's 2026 population is estimated at 1,348,046, reflecting a 3.59% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Collin County is the 6th largest county in Texas. The 2010 population was 787,102 and has grown 71.27% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.3 years
Female: 37.8 years
Male: 36.8 years
There are 875,753 adults, (134,714 of whom are seniors) in Collin County.
Female: 584,381 (50.2%)
Male: 578,956 (49.8%)
The racial composition of Collin County includes 53.46% White, 18.8% Asian, 10.98% Black or African American, 3.8% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 621,943 | 53.46% |
| Asian | 218,741 | 18.8% |
| Two or more races | 144,914 | 12.46% |
| Black or African American | 127,684 | 10.98% |
| Other race | 44,181 | 3.8% |
| Native American | 5,198 | 0.45% |
| Native Hawaiian or Pacific Islander | 676 | 0.06% |
Collin County 's average per capita income is $73,245. Household income levels show a median of $121,600. The poverty rate stands at 6.23%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $161,982 | $195,671 |
| Families | $145,862 | $178,648 |
| Households | $121,600 | $155,619 |
| Non Families | $69,837 | $89,247 |
Average Income
Median Household Income
Poverty Rate
