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Yakima County, Washington facts for kids

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Yakima County
Yakima County Courthouse
Yakima County Courthouse
Map of Washington highlighting Yakima County
Location within the U.S. state of Washington
Map of the United States highlighting Washington
Washington's location within the U.S.
Country  United States
State  Washington
Founded January 21, 1865
Named for Yakama Nation
Seat Yakima
Largest city Yakima
 • Total 4,311 sq mi (11,170 km2)
 • Land 4,295 sq mi (11,120 km2)
 • Water 16 sq mi (40 km2)  0.4%%
 • Total 256,728
 • Estimate 
256,035 Decrease
 • Density 58/sq mi (22/km2)
Time zone UTC−8 (Pacific)
 • Summer (DST) UTC−7 (PDT)
Congressional district 4th

Yakima County is a county in the U.S. state of Washington. As of the 2020 census, its population was 256,728. The county seat and largest city is Yakima. The county was formed out of Ferguson County in January 1865 and is named for the Yakama tribe of Native Americans.

Yakima County comprises the Yakima, WA Metropolitan Statistical Area and is Washington state's largest majority-Hispanic county as of 2020.


Orchards near Selah WA
Orchards near Selah
Mt Adams from Trout Lake Highway
Mount Adams, highest point in Yakima County
Klickitat County vast farmlands
South eastern Yakima County vast farmlands.

According to the U.S. Census Bureau, the county has a total area of 4,311 square miles (11,170 km2), of which 4,295 square miles (11,120 km2) is land and 16 square miles (41 km2) (0.4%) is water. Yakima County is the second-largest county in Washington by land area and third-largest by total area. Yakima County is also widely known for being one of the most difficult places on earth to predict weather, because of the mountains that surround it. The total area covered by the county is larger than the states of Delaware and Rhode Island combined. The highest point in the county is Mount Adams, which is the second tallest peak in Washington and the third tallest in the entire Cascade Range.

Geographic features

Oreamnos americanus 13A
Mountain Goats near the glaciers of Goat Rocks Wilderness

Major rivers

National protected areas

Major roads

Adjacent counties


Historical population
Census Pop.
1870 432
1880 2,811 550.7%
1890 4,429 57.6%
1900 13,462 204.0%
1910 41,709 209.8%
1920 63,710 52.7%
1930 77,402 21.5%
1940 99,019 27.9%
1950 135,723 37.1%
1960 145,112 6.9%
1970 144,971 −0.1%
1980 172,508 19.0%
1990 188,823 9.5%
2000 222,581 17.9%
2010 243,231 9.3%
2020 256,728 5.5%
2021 (est.) 256,035 5.3%
U.S. Decennial Census
1790–1960 1900–1990
1990–2000 2010–2020

2010 census

As of the 2010 census, there were 243,231 people, 80,592 households, and 58,790 families living in the county. The population density was 56.6 inhabitants per square mile (21.9/km2). There were 85,474 housing units at an average density of 19.9 per square mile (7.7/km2). The racial makeup of the county was 63.7% white, 4.3% American Indian, 1.1% Asian, 1.0% black or African American, 0.1% Pacific islander, 26.1% from other races, and 3.7% from two or more races. Those of Hispanic or Latino origin made up 45.0% of the population. In terms of ancestry, 15.8% were German, 8.0% were English, 7.3% were Irish, and 3.6% were American.

Of the 80,592 households, 42.1% had children under the age of 18 living with them, 51.4% were married couples living together, 14.7% had a female householder with no husband present, 27.1% were non-families, and 21.6% of all households were made up of individuals. The average household size was 2.97 and the average family size was 3.46. The median age was 32.2 years.

The median income for a household in the county was $42,877 and the median income for a family was $48,004. Males had a median income of $37,029 versus $29,824 for females. The per capita income for the county was $19,325. About 16.8% of families and 21.8% of the population were below the poverty line, including 31.9% of those under age 18 and 11.9% of those age 65 or over.




Census-designated places

Unincorporated communities

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