Rainier is a city located in Thurston County, Washington. Rainier has a 2026 population of 2,566. Rainier is currently growing at a rate of 1.18% annually and its population has increased by 7.59% since the most recent census, which recorded a population of 2,385 in 2020.
The median household income in Rainier is $106,019 with a poverty rate of 14.57%. The median age in Rainier is 36.3 years: 36.9 years for males, and 33.7 years for females. For every 100 females there are 95.3 males.
Data after 2023 is projected based on recent change
Overall: 36.3 years
Female: 33.7 years
Male: 36.9 years
There are 1,727 adults, (282 of whom are seniors) in Rainier.
Female: 1,257 (51.2%)
Male: 1,198 (48.8%)
The racial composition of Rainier includes 84.44% White, 4.64% other race, and smaller percentages for Native American, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,073 | 84.44% |
| Two or more races | 230 | 9.37% |
| Other race | 114 | 4.64% |
| Native American | 31 | 1.26% |
| Black or African American | 7 | 0.29% |
Rainier 's average per capita income is $54,904. Household income levels show a median of $106,019. The poverty rate stands at 14.57%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $107,315 | - |
| Households | $106,019 | $104,732 |
| Families | $104,550 | $104,699 |
| Non Families | $72,240 | $89,401 |
Average Income
Median Household Income
Poverty Rate