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 2025 population of 2,538. Rainier is currently growing at a rate of 1.24% annually and its population has increased by 6.5% since the most recent census, which recorded a population of 2,383 in 2020.

The average household income in Rainier is $102,758 with a poverty rate of 14.22%.The median age in Rainier is 38.5 years: 41.2 years for males, and 37 years for females.

Demographics

The racial composition of Rainier includes 90.84% White, and smaller percentages for Native American, other race, Asian and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	2,270	90.84%
Two or more races	169	6.76%
Native American	32	1.28%
Other race	15	0.6%
Asian	13	0.52%

Rainier Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Rainier's average per capita income is $51,719. Household income levels show a median of $101,644. The poverty rate stands at 14.22%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$103,631	-
Households	$101,644	$102,758
Families	$100,347	$101,453
Non Families	$89,167	$87,747

$51,719

Average Income

$101,644

Median Household Income

14.22%

Poverty Rate