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, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Native American

Other race

Asian

Black or African American

Native Hawaiian or Pacific Islander

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%
Black or African American	0	0%
Native Hawaiian or Pacific Islander	0	0%

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