Washington

Population Density
People per square mile, 1990:	73.09
People per square mile, 2000:	88.53

Year	Population		Year	Population		Year	Population
1790	0		1880	75,116		1970	3,413,244
1800	0		1890	357,232		1980	4,132,353
1810	0		1900	518,103		1990	4,866,692
1820	0		1910	1,141,990		2000	5,894,121
1830	0		1920	1,356,621		2010	6,541,963
1840	0		1930	1,563,396		2020	7,432,136
1850	1,201		1940	1,736,191		2030	8,624,801
1860	11,594		1950	2,378,963
1870	23,955		1960	2,853,214

Population By County

	Census 2000 Population	Change from 1990	Percent Change
WASHINGTON	5,894,121	1,027,429	21.1
Adams County	16,428	2,825	20.8
Asotin County	20,551	2,946	16.7
Benton County	142,475	29,915	26.6
Chelan County	66,616	14,366	27.5
Clallam County	64,525	8,061	14.3
Clark County	345,238	107,185	45.0
Columbia County	4,064	40	1.0
Cowlitz County	92,948	10,829	13.2
Douglas County	32,603	6,398	24.4
Ferry County	7,260	965	15.3
Franklin County	49,347	11,874	31.7
Garfield County	2,397	149	6.6
Grant County	74,698	19,940	36.4
Grays Harbor County	67,194	3,019	4.7
Island County	71,558	11,363	18.9
Jefferson County	25,953	5,807	28.8
King County	1,737,034	229,715	15.2
Kitsap County	231,969	42,238	22.3
Kittitas County	33,362	6,637	24.8
Klickitat County	19,161	2,545	15.3
Lewis County	68,600	9,242	15.6
Lincoln County	10,184	1,320	14.9
Mason County	49,405	11,064	28.9
Okanogan County	39,564	6,214	18.6
Pacific County	20,984	2,102	11.1
Pend Oreille County	11,732	2,817	31.6
Pierce County	700,820	114,617	19.6
San Juan County	14,077	4,042	40.3
Skagit County	102,979	23,424	29.4
Skamania County	9,872	1,583	19.1
Snohomish County	606,024	140,382	30.1
Spokane County	417,939	56,575	15.7
Stevens County	40,066	9,118	29.5
Thurston County	207,355	46,117	28.6
Wahkiakum County	3,824	497	14.9
Walla Walla County	55,180	6,741	13.9
Whatcom County	166,814	39,034	30.5
Whitman County	40,740	1,965	5.1
Yakima County	222,581	33,758	17.9

SOURCE: U.S. Bureau of the Census

Also available: Washington News

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