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Washington Census Data: Population & Housing Density

Population, Areas, and Housing Density for Washington counties are shown in this easy-to-read table and chart combination.

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Source: U.S. Census Bureau 2000 Census.


Washington Census Data: Population & Housing Density
LocationPopulationHousing unitsArea in square milesDensity per square mile of land areaLocation
Total areaWater areaLand areaPopulationHousing units
United States

281,421,906

115,904,641

3,794,083.06

256,644.62

3,537,438.44

79.6

32.8

United States
Washington

5,894,121

2,451,075

71,299.64

4,755.58

66,544.06

88.6

36.8

Washington
Adams Co.16,4285,7731,929.694.731,924.968.53.0Adams Co.
Asotin Co.20,5519,111640.695.34635.3432.314.3Asotin Co.
Benton Co.142,47555,9631,760.1257.031,703.0983.732.9Benton Co.
Chelan Co.66,61630,4072,993.6272.252,921.3722.810.4Chelan Co.
Clallam Co.64,52530,6832,670.34930.891,739.4537.117.6Clallam Co.
Clark Co.345,238134,030656.2227.99628.22549.5213.3Clark Co.
Columbia Co.4,0642,018873.534.71868.814.72.3Columbia Co.
Cowlitz Co.92,94838,6241,166.3327.691,138.6481.633.9Cowlitz Co.
Douglas Co.32,60312,9441,848.6928.171,820.5317.97.1Douglas Co.
Ferry Co.7,2603,7752,257.4653.482,203.983.31.7Ferry Co.
Franklin Co.49,34716,0841,265.3522.951,242.4039.712.9Franklin Co.
Garfield Co.2,3971,288718.197.64710.553.41.8Garfield Co.
Grant Co.74,69829,0812,791.29110.232,681.0627.910.8Grant Co.
Grays Harbor Co.67,19432,4892,224.44307.551,916.8935.116.9Grays Harbor Co.
Island Co.71,55832,378517.39308.95208.43343.3155.3Island Co.
Jefferson Co.25,95314,1442,183.52369.291,814.2314.37.8Jefferson Co.
King Co.1,737,034742,2372,306.53180.482,126.04817.0349.1King Co.
Kitsap Co.231,96992,644565.98170.01395.97585.8234.0Kitsap Co.
Kittitas Co.33,36216,4752,333.1135.932,297.1914.57.2Kittitas Co.
Klickitat Co.19,1618,6331,904.1831.801,872.3710.24.6Klickitat Co.
Lewis Co.68,60029,5852,436.2628.632,407.6428.512.3Lewis Co.
Lincoln Co.10,1845,2982,339.7128.512,311.214.42.3Lincoln Co.
Mason Co.49,40525,5151,051.0389.97961.0651.426.5Mason Co.
Okanogan Co.39,56419,0855,315.1647.095,268.077.53.6Okanogan Co.
Pacific Co.20,98413,9911,223.50290.52932.9722.515.0Pacific Co.
Pend Oreille Co.11,7326,6081,425.3225.051,400.278.44.7Pend Oreille Co.
Pierce Co.700,820277,0601,806.50127.581,678.91417.4165.0Pierce Co.
San Juan Co.14,0779,752621.07446.15174.9280.555.8San Juan Co.
Skagit Co.102,97942,6811,920.47185.331,735.1459.324.6Skagit Co.
Skamania Co.9,8724,5761,683.8627.421,656.446.02.8Skamania Co.
LocationPopulationHousing unitsArea in square milesDensity per square mile of land areaLocation
Total areaWater areaLand areaPopulationHousing units
United States

281,421,906

115,904,641

3,794,083.06

256,644.62

3,537,438.44

79.6

32.8

United States
Washington

5,894,121

2,451,075

71,299.64

4,755.58

66,544.06

88.6

36.8

Washington
Snohomish Co.606,024236,2052,196.41107.352,089.06290.1113.1Snohomish Co.
Spokane Co.417,939175,0051,780.7217.091,763.64237.099.2Spokane Co.
Stevens Co.40,06617,5992,540.6462.342,478.3016.27.1Stevens Co.
Thurston Co.207,35586,652773.6446.62727.02285.2119.2Thurston Co.
Wahkiakum Co.3,8241,792286.6922.45264.2414.56.8Wahkiakum Co.
Walla Walla Co.55,18021,1471,299.2528.741,270.5143.416.6Walla Walla Co.
Whatcom Co.166,81473,8932,503.55384.022,119.5378.734.9Whatcom Co.
Whitman Co.40,74016,6762,177.6018.232,159.3718.97.7Whitman Co.
Yakima Co.222,58179,1744,311.6115.384,296.2351.818.4Yakima Co.

Reading the Chart:

The entries under the Area in square miles headings are areas.

The entries under the Population and Housing Units headings are totals.

The Density per square mile of land area values are derived by dividing the population (or housing unit) count by the land ares. For example, dividing the total US population of 281,421,906 by the total land area of 3,537,438.44 gives a density value of 79.6 people per square mile.

In this chart the length of all of the colored bars represent percentages of the highest value of any county in the state. For example, the county with the highest population will have a colored bar that fills the cell. A county with half that many people will have a colored bar that fills half the cell. The same method is used for the colored bars shown in the Area and Density table cells. For small percentages the bar does not appear.

Abbreviations used in location names: Co.=County, C.A.=Census Area, Pa.=Parish, Mu.=Municipio.

Interested in Washington? Check out Washington Climate for data and charts about average weather, daylight, and global warming.

Please note that if you set your browser to display very large text sizes, the table cell sizes will change, and the lengths of the colored bars will not be accurate, although they will still show proportions.

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