St. John town, Washington
Official LSAD Designation: St. John town • Census GEOID: 5360860
• Whitman County
Demographics & Population Profile
Population and demographics for St. John town.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 586 | — | 2025 | Census |
| Median Age | 57.3 yrs | ±4 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 275 | ±50 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).