| Place Name | South Prairie |
| Place Type | Town |
| ZIP Code(s) | 98385 |
| County | Pierce County |
| Area Code(s) | 360 |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2022) | 469 |
| Population Growth Rate (2010-19) | -14.06% |
| Majority Ethnicity | White 82.52% |
| Metro/Micro Stats Area | Seattle-Tacoma-Bellevue, WA |
| US Congressional District(s) | Washington 8th |
| State House Districts | 31 |
| State Senate Districts | 31 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 82.52% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 1.7% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 15.78% |