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1M
1.2M
1.4M
1.6M
1.8M
2M
2.2M
County | 2024 Pop. | Change (2020) | Area (mi²) | Density (/mi²) | Location |
---|---|---|---|---|---|
King County | 2,277,449 | 0.14% | 817 | 1,076 | |
Pierce County | 930,913 | 0.79% | 644 | 558 | |
Snohomish County | 849,070 | 2.31% | 806 | 407 | |
Spokane County | 553,170 | 2.22% | 681 | 314 | |
Clark County | 525,563 | 4% | 242 | 837 | |
Thurston County | 299,367 | 1.14% | 279 | 414 | |
Kitsap County | 277,503 | 0.61% | 152 | 703 | |
Yakima County | 256,267 | -0.18% | 1.7K | 60 | |
Whatcom County | 233,240 | 2.55% | 814 | 111 | |
Benton County | 217,609 | 4.91% | 656 | 128 | |
Skagit County | 131,512 | 1.24% | 668 | 76 | |
Cowlitz County | 113,664 | 2.39% | 440 | 100 | |
Grant County | 103,776 | 4.36% | 1K | 39 | |
Franklin County | 99,486 | 2.4% | 479 | 80 | |
Lewis County | 86,951 | 5.33% | 928 | 36 | |
Island County | 85,852 | -1.32% | 80 | 413 | |
Chelan County | 79,956 | 0.91% | 1.1K | 27 | |
Clallam County | 77,548 | 0.23% | 671 | 45 | |
Grays Harbor County | 77,539 | 2.22% | 734 | 41 | |
Mason County | 68,607 | 3.9% | 371 | 71 | |
Walla Walla County | 61,283 | -2.14% | 490 | 48 | |
Stevens County | 49,391 | 6.01% | 956 | 20 | |
Whitman County | 48,445 | 1.33% | 833 | 22 | |
Kittitas County | 45,894 | 2.9% | 887 | 20 | |
Douglas County | 45,373 | 5.45% | 702 | 25 | |
Okanogan County | 43,964 | 4.33% | 2K | 8 | |
Jefferson County | 33,858 | 2.41% | 696 | 19 | |
Pacific County | 24,305 | 3.45% | 360 | 26 | |
Klickitat County | 23,875 | 4.65% | 723 | 13 | |
Asotin County | 22,562 | 1.07% | 245 | 35 | |
Adams County | 20,742 | 0.66% | 743 | 11 | |
San Juan County | 18,460 | 3.56% | 67 | 106 | |
Pend Oreille County | 14,584 | 8.01% | 540 | 10 | |
Skamania County | 12,825 | 6.51% | 640 | 8 | |
Lincoln County | 11,863 | 8.56% | 892 | 5 | |
Ferry County | 7,526 | 4.56% | 850 | 3 | |
Wahkiakum County | 4,842 | 8.86% | 102 | 18 | |
Columbia County | 4,080 | 3.32% | 335 | 5 | |
Garfield County | 2,369 | 3.27% | 274 | 3 |
There are 39 counties in Washington. As of 2019, Washington's most populous county is King County, home to Seattle, with a population of 2,188,649. This represents a population growth of 12.97% since the 2010 census. King County is followed by Piece County (876,764), Snohomish County (801,633), and Spokane County (506,152) in terms of population. These are the only counties with a population of more than 500,000. All four counties have posted significant growth since the census ranging from 7% to almost 13%.
The least populous Washington county is Garfield County with a population of 2,210. This represents a population decline of 2.26% since the last census. Other sparsely populated counties in Washington include Columbia County (4,047), Wahkiakum County (4,264), and Ferry County (7,594). These are the only counties in Washington with a population under 10,000. Three of these counties reported a population decline since 2010. Wahkiakum County had population growth of 7.05% since the last census.
Franklin County has boasted the highest population growth rate in Washington since the last census, growing 16.48% to 92,125. Four other cities have experienced population growth above 12%: King County (12.97%), Kittitas County (12.74%), Benton County (12.30%), and Snohomish County (12.05%). The county with the largest negative growth is Garfield County at -2.26%.
State | Counties |
---|---|
Texas | 254 |
Georgia | 159 |
Virginia | 133 |
Kentucky | 120 |
Missouri | 115 |
Kansas | 105 |
Illinois | 102 |
North Carolina | 100 |
Iowa | 99 |
Tennessee | 95 |
Nebraska | 93 |
Indiana | 92 |
Ohio | 88 |
Minnesota | 87 |
Michigan | 83 |
Mississippi | 82 |
Puerto Rico | 78 |
Oklahoma | 77 |
Arkansas | 75 |
Wisconsin | 72 |
Alabama | 67 |
Florida | 67 |
Pennsylvania | 67 |
South Dakota | 66 |
Colorado | 64 |
Louisiana | 64 |
New York | 62 |
California | 58 |
Montana | 56 |
West Virginia | 55 |
North Dakota | 53 |
South Carolina | 46 |
Idaho | 44 |
Washington | 39 |
Oregon | 36 |
New Mexico | 33 |
Alaska | 30 |
Utah | 29 |
Maryland | 24 |
Wyoming | 23 |
New Jersey | 21 |
Nevada | 17 |
Maine | 16 |
Arizona | 15 |
Massachusetts | 14 |
Vermont | 14 |
New Hampshire | 10 |
Connecticut | 9 |
Hawaii | 5 |
Rhode Island | 5 |
Delaware | 3 |
District of Columbia | 1 |