Rainier Flag

Rainier

County:
Thurston County
County Seat:
No
Area (mi²):
1.738
State:
Washington

Rainier is a city located in Thurston County, Washington. Rainier has a 2026 population of 2,506. Rainier is currently growing at a rate of 1.25% annually and its population has increased by 5.07% since the most recent census, which recorded a population of 2,385 in 2020.

2.5K
Total Population
1,442
Density (mi²)
31 1.25%
Growth