| Name | Collin County |
| State | Texas |
| FIPS Code | 48085 |
| County Seat | McKinney |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 1,207,964 |
| Population Growth Rate(2020-2024) | 11.72% |
| Majority Ethnicity | White 55.97% |
| Public School Majority Ethnicity | White 37% |
| Partisan Voting Index | Republican:+5 |
| Unemployment Rate (May 2026) | 4.1% |
| Sales Tax Rate (2025) | 8.25% |
| Area Code(s) | 214 / 469 / 945 / 972 / 430 / 903 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 55.97% |
| African American | 10.51% |
| Hispanic | 15.69% |
| Asian | 17.32% |
| Native American | 0.43% |
| Hawaiin/Pacific Islander | 0.08% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 36.96% |
| African American | 12.75% |
| Hispanic | 21.16% |
| Asian | 23.3% |
| Native American | 0.49% |
| Hawaiin/Pacific Islander | 0.11% |