According to theUnited States Census Bureau, the county has a total area of 2,541 square miles (6,580 km2), of which 2,478 square miles (6,420 km2) is land and 63 square miles (160 km2) (2.5%) is water.[4]
As of the2010 census,[10] the population density was 17.6 people per square mile (6.8 people/km2). There were 21,156 housing units at an average density of 8.5 units per square mile (3.3 units/km2).[11] Theracial makeup of the county was 88.9% White, 0.6% Black or African American, 1.5% Native American, 1.5% Asian, 0.2% Pacific Islander, 3.5% from other races, 3.7% two or more races. Those of Hispanic or Latino origin made up 2.7% of the population.[10] In terms of ancestry, 24.6% wereGerman, 14.2% wereIrish, 13.7% wereEnglish, 6.4% wereNorwegian, and 6.1% wereAmerican.[12]
Of the households, 29.6% had children under the age of 18 living with them, 56.3% were married couples living together, 9.0% had a female householder with no husband present, 29.9% were non-families, and 24.6% of households were made up of individuals. The average household size was 2.50 and the average family size was 2.95. The median age was 45.0 years.[10]
The median household income was $42,845 and the median family income was $51,544. Males had a median income of $46,721 versus $33,651 for females. The per capita income for the county was $21,773. About 11.0% of families and 15.1% of the population were below thepoverty line, including 21.1% of those under age 18 and 9.3% of those age 65 or over.[13]
As of the2000 census, there were 40,066 people, 15,017 households, and 11,022 families in the county. The population density was 16 people per square mile (6.2 people/km2). There were 17,599 housing units at an average density of 7 units per square mile (2.7 units/km2). Theracial makeup of the county was 90.05%White, 0.28%Black orAfrican American, 5.66%Native American, 0.48%Asian, 0.16%Pacific Islander, 0.68% from other races, and 2.70% from two or more races. 1.84%.[14] wereHispanic orLatino of any race. 20.6% were ofGerman, 18.9%United States or American, 10.0%English, 7.9%Irish and 5.0%Norwegian ancestry.
Of the 15,017 households 34.40% had children under the age of 18 living with them, 60.40% were married couples living together, 8.70% had a female householder with no husband present, and 26.60% were non-families. 22.00% of households were one person and 8.80% were one person aged 65 or older. The average household size was 2.64 and the average family size was 3.08.
The age distribution was 28.70% under the age of 18, 6.40% from 18 to 24, 24.90% from 25 to 44, 27.10% from 45 to 64, and 12.90% 65 or older. The median age was 39 years. For every 100 females there were 99.10 males. For every 100 females age 18 and over, there were 96.60 males.
The median household income was $34,673 and the median family income was $40,250. Males had a median income of $35,256 versus $23,679 for females. The per capita income for the county was $15,895. About 11.50% of families and 15.90% of the population were below thepoverty line, including 19.80% of those under age 18 and 11.90% of those age 65 or over.
Like many counties inEastern Washington, Stevens County is solidly Republican and has voted for every Republican presidential nominee sinceRichard Nixon in 1968. In2024, the county was one of only two in Washington State, along with neighboringLincoln County, to give all ten statewide Republican candidates over 70% of the vote.
United States presidential election results for Stevens County, Washington[15][16]
TheStevens County Wiki Project: A community wiki project, dedicated to creating an online wiki guide to Stevens County, Washington. Powered by Media Wiki.
Stevens County Rural Library District: hosts of the Stevens County Wiki Project, the Stevens County Library District (SCRLD) has various regional links available from their website.
Stevens County Heritage Historical photos and documents from the Libraries of Stevens County.
uppercolumbia.net: a regional portal site for Stevens County and beyond. Includes business links and events calendar.
The Heritage Network: History and Genealogy Resources for the Upper Columbia Region.