| Name | Sweetwater County |
| State | Wyoming |
| FIPS Code | 56037 |
| County Seat | Green River |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2022) | 43,890 |
| Population Growth Rate(2000-2022) | -3.5% |
| Majority Ethnicity | White 96.22% |
| Public School Majority Ethnicity | White 71% |
| Partisan Voting Index | Strongly Republican:+26 |
| Unemployment Rate (May 2025) | 4.0% |
| Area Code(s) | 307 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 96.22% |
| African American | 1.42% |
| Hispanic | 1.12% |
| Asian | 0.97% |
| Native American | 0.13% |
| Hawaiin/Pacific Islander | 0.13% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 71.35% |
| African American | 0.83% |
| Hispanic | 22.63% |
| Asian | 0.48% |
| Native American | 0.54% |
| Hawaiin/Pacific Islander | 0.16% |