| Name | Starr County |
| State | Texas |
| FIPS Code | 48427 |
| County Seat | Rio Grande City |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 66,215 |
| Population Growth Rate(2020-2024) | 0.44% |
| Majority Ethnicity | Hispanic 68.5% |
| Public School Majority Ethnicity | Hispanic 99% |
| Partisan Voting Index | Republican:+4 |
| Unemployment Rate (September 2025) | 10.0% |
| Sales Tax Rate (2025) | 6.25% |
| Area Code(s) | 956 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 31.14% |
| African American | 0.23% |
| Hispanic | 68.5% |
| Asian | 0.02% |
| Native American | 0.11% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 0.6% |
| African American | 0.02% |
| Hispanic | 99.22% |
| Asian | 0.12% |
| Native American | 0.02% |
| Hawaiin/Pacific Islander | 0% |