| Place Name | Mammoth Spring |
| Place Type | City |
| ZIP Code(s) | 72554 |
| County | Fulton County |
| Area Code(s) | 327,870 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 1,144 |
| Population Growth Rate (2010-19) | -4.91% |
| Majority Ethnicity | White 98.11% |
| US Congressional District(s) | Arkansas 1st |
| State House Districts | 61 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.11% |
| African American | 0% |
| Hispanic | 1.89% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |