| Place Name | Mount Calm |
| Place Type | City |
| ZIP Code(s) | 76673 |
| County | Hill County |
| Area Code(s) | 254 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 256 |
| Population Growth Rate (2010-19) | -11.88% |
| Majority Ethnicity | White 61.98% |
| US Congressional District(s) | Texas 25th |
| State House Districts | 8 |
| State Senate Districts | 22 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 61.98% |
| African American | 12.67% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 25.35% |