Business planning by county
Washington county reference
39 counties and county equivalents in Washington. Search names or FIPS codes, compare Census geography and keep the original sources with your work.
- Adams County
Washington · FIPS 53001
21,488 residents · 2025 estimate
- Asotin County
Washington · FIPS 53003
22,545 residents · 2025 estimate
- Benton County
Washington · FIPS 53005
221,722 residents · 2025 estimate
- Chelan County
Washington · FIPS 53007
81,941 residents · 2025 estimate
- Clallam County
Washington · FIPS 53009
78,202 residents · 2025 estimate
- Clark County
Washington · FIPS 53011
532,119 residents · 2025 estimate
- Columbia County
Washington · FIPS 53013
4,141 residents · 2025 estimate
- Cowlitz County
Washington · FIPS 53015
114,885 residents · 2025 estimate
- Douglas County
Washington · FIPS 53017
46,473 residents · 2025 estimate
- Ferry County
Washington · FIPS 53019
7,517 residents · 2025 estimate
- Franklin County
Washington · FIPS 53021
102,612 residents · 2025 estimate
- Garfield County
Washington · FIPS 53023
2,416 residents · 2025 estimate
- Grant County
Washington · FIPS 53025
105,727 residents · 2025 estimate
- Grays Harbor County
Washington · FIPS 53027
78,144 residents · 2025 estimate
- Island County
Washington · FIPS 53029
85,657 residents · 2025 estimate
- Jefferson County
Washington · FIPS 53031
33,970 residents · 2025 estimate
- King County
Washington · FIPS 53033
2,344,939 residents · 2025 estimate
- Kitsap County
Washington · FIPS 53035
283,374 residents · 2025 estimate
- Kittitas County
Washington · FIPS 53037
48,803 residents · 2025 estimate
- Klickitat County
Washington · FIPS 53039
24,331 residents · 2025 estimate
- Lewis County
Washington · FIPS 53041
88,062 residents · 2025 estimate
- Lincoln County
Washington · FIPS 53043
11,982 residents · 2025 estimate
- Mason County
Washington · FIPS 53045
71,165 residents · 2025 estimate
- Okanogan County
Washington · FIPS 53047
45,230 residents · 2025 estimate
- Pacific County
Washington · FIPS 53049
24,357 residents · 2025 estimate
- Pend Oreille County
Washington · FIPS 53051
14,457 residents · 2025 estimate
- Pierce County
Washington · FIPS 53053
946,288 residents · 2025 estimate
- San Juan County
Washington · FIPS 53055
18,577 residents · 2025 estimate
- Skagit County
Washington · FIPS 53057
132,975 residents · 2025 estimate
- Skamania County
Washington · FIPS 53059
12,669 residents · 2025 estimate
- Snohomish County
Washington · FIPS 53061
870,656 residents · 2025 estimate
- Spokane County
Washington · FIPS 53063
558,344 residents · 2025 estimate
- Stevens County
Washington · FIPS 53065
49,668 residents · 2025 estimate
- Thurston County
Washington · FIPS 53067
304,261 residents · 2025 estimate
- Wahkiakum County
Washington · FIPS 53069
4,873 residents · 2025 estimate
- Walla Walla County
Washington · FIPS 53071
62,361 residents · 2025 estimate
- Whatcom County
Washington · FIPS 53073
236,392 residents · 2025 estimate
- Whitman County
Washington · FIPS 53075
48,512 residents · 2025 estimate
- Yakima County
Washington · FIPS 53077
259,185 residents · 2025 estimate
Use the county data
Use a county reference when organizing a market-research brief, outreach territory or business calculation. County population gives geographic context; it does not measure the number of qualified customers.
These are geographic reference records, not contact lists or verified sales leads.
Geography: 2025 U.S. Census Gazetteer. Population: Vintage 2025 estimates, July 1, 2025. County equivalents include parishes, boroughs, independent cities and planning regions. Puerto Rico population is not supplied by this population file.