| Place Name | Calvin |
| Place Type | Town |
| ZIP Code(s) | 74531 |
| County | Hughes County |
| Area Code(s) | 405 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 203 |
| Population Growth Rate (2010-19) | 5.10% |
| Majority Ethnicity | White 64.77% |
| US Congressional District(s) | Oklahoma 2nd |
| State House Districts | 18 |
| State Senate Districts | 7 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 64.77% |
| African American | 2.41% |
| Hispanic | 20.57% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 12.25% |