Yakima County, Washington

A county in Washington, ranked 8 of 39 by population.

CountyFIPS 53077

Within Washington
Yakima County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Yakima, the county seat, located via the 2025 Census Gazetteer.

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Population
259,185
+2,469 (+1.0%) since 2020
Land area
4,295
square miles. A further 0.4% of the total area is water
Population density
60.4
people per square mile, computed rather than published
County seat
Yakima
Seat of county government.
Established
1865
160 years ago
Largest city
Yakima city
Population 97,458.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Yakima County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Yakima County, Washington from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 743 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Yakima County ranks

Position among the 39 counties of Washington, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn WashingtonNationally
Population259,1858th of 39284th of 3,144
Land area4,295 sq mi2nd of 39107th of 3,144
Population density60.4 per sq mi16th of 391,303rd of 3,144
Median household income$70,65628th of 391,149th of 3,143

Full data for Yakima County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population259,185Vintage 2025 Population Estimates
Population in 2020256,716Vintage 2025 Population Estimates
2020 estimates base?256,729Vintage 2025 Population Estimates
Land area4,295 sq mi2025 Gazetteer Files
Water area15.9 sq mi2025 Gazetteer Files
Total area4,310 sq mi2025 Gazetteer Files
Population density?60.4 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$70,656American Community Survey 2020-2024 5-Year Estimates
Median home value$310,100American Community Survey 2020-2024 5-Year Estimates
Median age33.3American Community Survey 2020-2024 5-Year Estimates
Households87,708American Community Survey 2020-2024 5-Year Estimates
Housing units92,432American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+913
3,239 births, 2,326 deaths
Net migration
-709
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 8 areas bordering Yakima County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Kittitas CountyWashington90 mi48,803
Klickitat CountyWashington80 mi24,331
Lewis CountyWashington48 mi88,062
Benton CountyWashington41 mi221,722
Pierce CountyWashington29 mi946,288
Skamania CountyWashington24 mi12,669
Grant CountyWashington9.5 mi105,727
King CountyWashington115 ft2,344,939

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 39 counties of Washington

Open the interactive Washington county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.