According to theUnited States Census Bureau, the county has a total area of 1,904 square miles (4,930 km2), of which 33 square miles (85 km2) (1.7%) are covered by water.[4]
As of the2020 census, 22,735 people and 9,332 households were living in the county.[10] The population density of the county was 12.1 people per square mile, which went up from 10.9 in 2010. The racial makeup of the county was 92.8%White, 0.7%African American, 2.6%Native American, 1.0%Asian, 0.2%Pacific Islander, and 2.7% from two or more races.[10] Those of Hispanic or Latino origin made up 12% of the population.
The county's age distribution included 18.7% under 18, 4.6% under 5, and 25.2% over 65. The gender makeup of the county was 49% female and 51% male.[10]
The median household income in the county was $59,583, and the per capita income was $34,529. About 13.0% of the population in the county were under thepoverty line.[10]
As of the2010 census, 20,318 people, 8,327 households, and 5,626 families lived in the county.[11] The population density was 10.9 inhabitants per square mile (4.2/km2). The 9,786 housing units had an average density of 5.2 per square mile (2.0/km2).[12] The racial makeup of the county was 87.7% White, 2.4% American Indian, 0.6% Asian, 0.2% Black or African American, 5.7% from other races, and 3.3% from two or more races. Those of Hispanic or Latino origin made up 10.7% of the population.[11] In terms of ancestry,[13]
Of the 8,327 households, 27.6% had children under 18 living with them, 54.5% were married couples living together, 8.5% had a female householder with no husband present, 32.4% were not families, and 26.4% of all households were made up of individuals. The average household size was 2.42 and the average family size was 2.88. The median age was 45.3 years.[11]
The median income for a household in the county was $37,398 and for a family was $46,012. Males had a median income of $43,588 versus $31,114 for females. The per capita income for the county was $21,553. About 13.7% of families and 19.5% of the population were below thepoverty line, including 33.9% of those under age 18 and 9.4% of those age 65 or over.[14]
As of the2000 census, 19,161 people, 7,473 households, and 5,305 families resided in the county. Thepopulation density was 10 people per square mile (3.9 people/km2). The 8,633 housing units had an average density of 5 per square mile (1.9/km2). The racial makeup of the county was 87.56% White, 0.27% Black or African American, 3.47% Native American, 0.73% Asian, 0.21% Pacific Islander, 5.02% fromother races, and 2.75% fromtwo or more races. About 7.81% of the population wereHispanics or Latinos of any race; 17.7% were ofGerman, 14.0%United States or American, 11.1%English and 9.6%Irish ancestry. 90.3% spokeEnglish and 7.8%Spanish as their first language.
Of the 7,473 households, 32.3% had children under 18 living with them, 57.7% were married couples living together, 9.1% had a female householder with no husband present, and 29.0% were not families. About 23.8% of all households were made up of individuals, and 9.0% had someone living alone who was 65 or older. The average household size was 2.54 and the average family size was 2.99.
The age distribution was 27.1% under 18, 6.5% from 18 to 24, 25.7% from 25 to 44, 27.0% from 45 to 64, and 13.8% who were 65 or older. The median age was 40 years. For every 100 females, there were 99.5 males. For every 100 females 18 and over, there were 98.8 males.
The median income for a household in the county was $34,267, and for a family was $40,414. Males had a median income of $36,067 versus $21,922 for females. Theper capita income for the county was $16,502. About 12.6% of families and 17.0% of the population were below thepoverty line, including 22.5% of those under 18 and 15.10% of those 65 or over.
In presidential elections, Klickitat County has trended Republican in recent years. In 1988Michael Dukakis narrowly won the county with 49.15% of the vote.[16]Richard Nixon (1960, 1972),Ronald Reagan,[17]Bill Clinton, andGeorge W. Bush[18] all won the county twice. In 2008 DemocratBarack Obama won Klickitat County over RepublicanJohn McCain by only 21 votes or percentage wise 48.85% to 48.64%. In 2012 Republican candidate Mitt Romney won the county by a greater margin than in the previous election, with 51.74% of the vote compared to President Obama's 44.75%,[19] andDonald Trump doubled Romney's margin in 2016.
United States presidential election results for Klickitat County, Washington[20]