Washington County Map
About the map
This Washington county map displays its 39 counties. For example, King County, Pierce County, and Snohomish County are some of the most populated counties in Washington.
Most notably, King County has the highest population in Washington with 2.25 million people. In fact, it’s so populated that it ranks as the 13th highest in the United States. It’s home to Seattle, which is a major seaport city on the west coast of Washington.
For size, Okanogan County in the north of Washington is the largest, occupying an area of over 5300 square miles. Conversely, the smallest county is San Juan County with an area of about 175 square miles. This archipelago is sandwiched between the west coast of Washington and Vancouver Island in the Pacific Northwest.
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Washington County List
| County Name | Population (2020 est) | County Map | Area (sq mi) | Locator Map | FIPS Code |
|---|---|---|---|---|---|
| Adams County | 20,027 |  | 1929.6 |  | 53001 |
| Asotin County | 22,820 |  | 639.2 |  | 53003 |
| Benton County | 206,426 |  | 1760.1 |  | 53005 |
| Chelan County | 77,574 |  | 2994.2 |  | 53007 |
| Clallam County | 78,067 |  | 1765.5 |  | 53009 |
| Clark County | 496,865 |  | 654.9 |  | 53011 |
| Columbia County | 4,048 |  | 873.5 |  | 53013 |
| Cowlitz County | 111,371 |  | 1167.8 |  | 53015 |
| Douglas County | 43,560 |  | 1848.2 |  | 53017 |
| Ferry County | 7,759 |  | 2261 |  | 53019 |
| Franklin County | 97,075 |  | 1265.3 |  | 53021 |
| Garfield County | 2,290 |  | 718.2 |  | 53023 |
| Grant County | 99,377 |  | 2790.4 |  | 53025 |
| Grays Harbor County | 75,950 |  | 1929.9 |  | 53027 |
| Island County | 86,014 |  | 210.2 |  | 53029 |
| Jefferson County | 32,700 |  | 1818.3 |  | 53031 |
| King County | 2,274,315 |  | 2189.2 |  | 53033 |
| Kitsap County | 272,787 |  | 398.2 |  | 53035 |
| Kittitas County | 49,204 |  | 2334.3 |  | 53037 |
| Klickitat County | 22,697 |  | 1905.4 |  | 53039 |
| Lewis County | 82,109 |  | 2435.2 |  | 53041 |
| Lincoln County | 11,090 |  | 2339.7 |  | 53043 |
| Mason County | 68,224 |  | 973.8 |  | 53045 |
| Okanogan County | 42,620 |  | 5313.4 |  | 53047 |
| Pacific County | 22,984 |  | 935.6 |  | 53049 |
| Pend Oreille County | 14,144 |  | 1422.1 |  | 53051 |
| Pierce County | 913,890 |  | 1691.4 |  | 53053 |
| San Juan County | 17,492 |  | 176.3 |  | 53055 |
| Skagit County | 130,789 |  | 1756.6 |  | 53057 |
| Skamania County | 12,107 |  | 1685.4 |  | 53059 |
| Snohomish County | 830,393 |  | 2108 |  | 53061 |
| Spokane County | 528,225 |  | 1778.1 |  | 53063 |
| Stevens County | 46,360 |  | 2536.5 |  | 53065 |
| Thurston County | 294,074 |  | 736.4 |  | 53067 |
| Wahkiakum County | 4,498 |  | 265.4 |  | 53069 |
| Walla Walla County | 61,292 |  | 1299.2 |  | 53071 |
| Whatcom County | 231,016 |  | 2163.8 |  | 53073 |
| Whitman County | 49,500 |  | 2174.8 |  | 53075 |
| Yakima County | 251,879 |  | 4312.4 |  | 53077 |
