St. John is a town located in Whitman County, Washington. St. John has a 2026 population of 586. St. John is currently declining at a rate of -0.34% annually and its population has decreased by -1.84% since the most recent census, which recorded a population of 597 in 2020.
The median household income in St. John is $46,250 with a poverty rate of 15.66%. The median age in St. John is 57.3 years: 59.1 years for males, and 56 years for females. For every 100 females there are 68.6 males.
Data after 2023 is projected based on recent change
Overall: 57.3 years
Female: 56 years
Male: 59.1 years
There are 530 adults, (243 of whom are seniors) in St. John.
Female: 360 (59.3%)
Male: 247 (40.7%)
The racial composition of St. John includes 89.79% White, 4.45% Asian, and smaller percentages for Native American, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 545 | 89.79% |
| Asian | 27 | 4.45% |
| Two or more races | 25 | 4.12% |
| Native American | 7 | 1.15% |
| Black or African American | 3 | 0.49% |
St. John 's average per capita income is $39,722. Household income levels show a median of $46,250. The poverty rate stands at 15.66%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $83,472 | - |
| Families | $80,000 | $84,883 |
| Households | $46,250 | $57,123 |
| Non Families | $20,893 | $29,134 |
Average Income
Median Household Income
Poverty Rate