Garfield County, Washington

The least populous of Washington's 39 counties.

CountyFIPS 53023

Within Washington

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

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Population: 2,416; +120 (+5.2%) since 2020
Land area: 710.8; square miles. A further 1.0% of the total area is water
Population density: 3.4; people per square mile, computed rather than published
County seat: Pomeroy; Seat of county government.
Established: 1881; 144 years ago
Largest city: Pomeroy city; Population 1,481.

Satellite view

Aerial imagery of Garfield 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 Garfield 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 530 by 800 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 Garfield 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.

Measure	Value	In Washington	Nationally
Population	2,416	39th of 39	3,005th of 3,144
Land area	710.8 sq mi	33rd of 39	1,290th of 3,144
Population density	3.4 per sq mi	39th of 39	2,871st of 3,144
Median household income	$64,884	34th of 39	1,645th of 3,143

Full data for Garfield County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
Measure	Value	Source and vintage
Population	2,416	Vintage 2025 Population Estimates
Population in 2020	2,296	Vintage 2025 Population Estimates
2020 estimates base?	2,286	Vintage 2025 Population Estimates
Land area	710.8 sq mi	2025 Gazetteer Files
Water area	7.5 sq mi	2025 Gazetteer Files
Total area	718.3 sq mi	2025 Gazetteer Files
Population density?	3.4 per sq mi	Computed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income	$64,884	American Community Survey 2020-2024 5-Year Estimates
Median home value	$239,200	American Community Survey 2020-2024 5-Year Estimates
Median age	47.8	American Community Survey 2020-2024 5-Year Estimates
Households	1,031	American Community Survey 2020-2024 5-Year Estimates
Housing units	1,221	American 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: +1; 26 births, 25 deaths
Net migration: +14; More people moved in than moved out.

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

The 4 areas bordering Garfield 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 area	State	Shared border	Population
Columbia County	Washington	56 mi	4,141
Whitman County	Washington	46 mi	48,512
Asotin County	Washington	44 mi	22,545
Wallowa County	Oregon	5.9 mi	7,595

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

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