| Place Name | Thermopolis |
| Place Type | Town |
| ZIP Code(s) | 82443 |
| GEOID | 5676515 |
| County | Hot Springs County |
| Area Code(s) | 307 |
| Timezone | Mountain Standard Time (MST) |
| Population (2021) | 2,826 |
| Population Growth Rate (2010-19) | -9.44% |
| Majority Ethnicity | White 95.15% |
| US Congressional District(s) | Wyoming At-Large |
| State House Districts | 28 |
| State Senate Districts | 20 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.15% |
| African American | 0% |
| Hispanic | 1.42% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.43% |