Census 2010: Washington › Counties

Choose group to compare | Searchable list | Compare Age & gender overview Age breakdown Families & children Households 2010 White 2010 Black 2010 American Indian/Native Alaskan 2010 Asian 2010 Pacific Islander 2010 Other race 2010 Multiple race 2010 Hispanic 2010 Non-Hispanic *Diversity Index Housing units

Washington by county

County name	2010 total population	2000 total population	Total change since 2000	2010 White population	2010 White percentage	White change since 2000
King County	1,931,249	1,737,034	11.2%	1,325,845 119,801 16,147 282,075 14,486 76,096 96,799 172,378 1,758,871 54.9% 851,261	68.7% 6.2% 0.8% 14.6% 0.8% 3.9% 5.0% 8.9% 91.1% 44.5% 62,029	0.8% 27.6% 1.4% 50.2% 60.7% 71.1% 37.3% 81.0% 7.1% 7.3%
Pierce County	795,225	700,820	13.5%	590,040 53,998 10,879 47,501 10,588 27,872 54,347 72,849 722,376 50.0% 325,375	74.2% 6.8% 1.4% 6.0% 1.3% 3.5% 6.8% 9.2% 90.8% 41.7% 25,457	7.4% 10.8% 9.2% 33.5% 78.8% 80.9% 51.6% 88.6% 9.1% 7.8%
Snohomish County	713,335	606,024	17.7%	559,011 18,168 9,793 63,385 3,135 27,121 32,722 64,249 649,086 43.7% 286,659	78.4% 2.5% 1.4% 8.9% 0.4% 3.8% 4.6% 9.0% 91.0% 30.3% 18,334	7.7% 79.6% 18.7% 80.9% 83.9% 133.2% 60.8% 124.7% 12.4% 6.4%
Spokane County	471,221	417,939	12.7%	420,275 8,056 7,295 9,957 1,902 5,880 17,856 21,260 449,961 25.4% 201,434	89.2% 1.7% 1.5% 2.1% 0.4% 1.2% 3.8% 4.5% 95.5% 19.6% 14,267	10.0% 21.0% 24.8% 26.5% 185.6% 72.4% 54.6% 83.9% 10.7% 7.1%
Clark County	425,363	345,238	23.2%	363,397 8,426 3,624 17,504 2,708 12,485 17,219 32,166 393,197 33.2% 167,413	85.4% 2.0% 0.9% 4.1% 0.6% 2.9% 4.0% 7.6% 92.4% 25.1% 9,314	18.5% 45.0% 24.5% 57.8% 112.6% 82.1% 61.8% 98.0% 19.5% 5.6%
Thurston County	252,264	207,355	21.7%	207,856 6,752 3,515 13,037 1,961 5,648 13,495 17,787 234,477 37.9% 108,182	82.4% 2.7% 1.4% 5.2% 0.8% 2.2% 5.3% 7.1% 92.9% 30.4% 7,532	17.0% 38.3% 11.8% 42.6% 81.9% 61.1% 69.0% 89.4% 18.4% 7.0%
Kitsap County	251,133	231,969	8.3%	207,369 6,650 4,040 12,396 2,310 3,919 14,449 15,686 235,447 37.6% 107,367	82.6% 2.6% 1.6% 4.9% 0.9% 1.6% 5.8% 6.2% 93.8% 32.4% 10,147	6.1% 0.0% 7.4% 21.6% 28.0% 18.4% 34.1% 63.2% 5.9% 9.5%
Yakima County	243,231	222,581	9.3%	155,056 2,320 10,568 2,560 204 63,414 9,109 109,470 133,761 62.3% 85,474	63.7% 1.0% 4.3% 1.1% 0.1% 26.1% 3.7% 45.0% 55.0% 59.1% 4,882	6.2% 7.6% 6.0% 20.5% 0.5% 16.6% 17.5% 37.0% -6.2% 5.7%
Whatcom County	201,140	166,814	20.6%	171,816 1,929 5,683 7,090 492 6,577 7,553 15,756 185,384 33.1% 90,665	85.4% 1.0% 2.8% 3.5% 0.2% 3.3% 3.8% 7.8% 92.2% 25.7% 10,295	16.5% 67.7% 20.7% 52.9% 109.4% 58.1% 70.2% 81.4% 17.2% 11.4%
Benton County	175,177	142,475	23.0%	144,418 2,221 1,574 4,691 253 15,798 6,222 32,696 142,481 42.7% 68,618	82.4% 1.3% 0.9% 2.7% 0.1% 9.0% 3.6% 18.7% 81.3% 32.7% 3,314	17.5% 68.4% 35.1% 49.7% 55.2% 58.2% 62.5% 83.6% 14.3% 4.8%
Skagit County	116,901	102,979	13.5%	97,448 774 2,516 2,080 226 10,118 3,739 19,709 97,192 40.0% 51,473	83.4% 0.7% 2.2% 1.8% 0.2% 8.7% 3.2% 16.9% 83.1% 30.4% 5,916	9.4% 72.0% 31.8% 35.2% 38.7% 37.1% 51.5% 70.8% 6.3% 11.5%
Cowlitz County	102,410	92,948	10.2%	91,069 642 1,570 1,500 232 3,575 3,822 7,975 94,435 27.2% 43,450	88.9% 0.6% 1.5% 1.5% 0.2% 3.5% 3.7% 7.8% 92.2% 19.7% 3,206	6.7% 33.2% 10.8% 24.4% 87.1% 82.6% 57.0% 88.5% 6.4% 7.4%
Grant County	89,120	74,698	19.3%	64,906 990 1,088 810 71 18,154 3,101 34,163 54,957 55.9% 35,083	72.8% 1.1% 1.2% 0.9% 0.1% 20.4% 3.5% 38.3% 61.7% 50.3% 5,042	13.5% 33.4% 26.1% 24.2% 34.0% 40.0% 38.0% 52.0% 5.2% 14.4%
Island County	78,506	71,558	9.7%	67,611 1,716 658 3,440 390 1,181 3,510 4,295 74,211 31.2% 40,234	86.1% 2.2% 0.8% 4.4% 0.5% 1.5% 4.5% 5.5% 94.5% 27.5% 7,488	8.4% 1.5% -5.1% 14.6% 24.2% 15.2% 42.7% 51.1% 8.0% 18.6%
Franklin County	78,163	49,347	58.4%	47,270 1,473 531 1,434 107 24,881 2,467 40,004 38,159 60.5% 24,423	60.5% 1.9% 0.7% 1.8% 0.1% 31.8% 3.2% 51.2% 48.8% 61.7% 1,178	54.7% 19.8% 46.7% 79.2% 87.7% 74.0% 20.6% 73.7% 45.0% 4.8%
Lewis County	75,455	68,600	10.0%	67,712 405 1,073 664 117 3,047 2,437 6,527 68,928 26.3% 34,050	89.7% 0.5% 1.4% 0.9% 0.2% 4.0% 3.2% 8.7% 91.3% 18.2% 4,307	6.2% 56.4% 27.7% 39.8% -4.1% 74.0% 76.5% 77.2% 6.2% 12.6%
Grays Harbor County	72,797	67,194	8.3%	61,825 803 3,325 1,032 182 2,817 2,813 6,272 66,525 34.0% 35,166	84.9% 1.1% 4.6% 1.4% 0.3% 3.9% 3.9% 8.6% 91.4% 25.7% 6,587	4.2% 255.3% 6.2% 26.2% 149.3% 84.5% 35.0% 92.5% 4.0% 18.7%
Chelan County	72,453	66,616	8.8%	57,484 236 700 588 100 11,355 1,990 18,713 53,740 45.4% 35,465	79.3% 0.3% 1.0% 0.8% 0.1% 15.7% 2.7% 25.8% 74.2% 37.5% 7,638	3.2% 37.2% 5.9% 30.4% 29.9% 39.8% 39.8% 45.8% -0.1% 21.5%
Clallam County	71,404	64,525	10.7%	62,092 596 3,630 1,007 94 1,269 2,716 3,627 67,777 28.9% 35,582	87.0% 0.8% 5.1% 1.4% 0.1% 1.8% 3.8% 5.1% 94.9% 23.8% 4,253	8.0% 9.4% 9.9% 37.8% -9.6% 66.8% 72.3% 64.6% 8.8% 12.0%
Mason County	60,699	49,405	22.9%	52,281 659 2,239 731 227 2,049 2,513 4,844 55,855 32.1% 32,518	86.1% 1.1% 3.7% 1.2% 0.4% 3.4% 4.1% 8.0% 92.0% 25.6% 8,686	19.6% 12.3% 21.7% 40.8% 2.7% 97.8% 67.9% 105.2% 18.7% 26.7%
Walla Walla County	58,781	55,180	6.5%	49,654 1,079 603 758 167 4,692 1,828 11,593 47,188 42.4% 23,451	84.5% 1.8% 1.0% 1.3% 0.3% 8.0% 3.1% 19.7% 80.3% 36.4% 1,732	5.5% 16.0% 29.7% 23.5% 35.8% 3.2% 28.8% 34.0% 1.4% 7.4%
Whitman County	44,776	40,740	9.9%	37,866 748 308 3,472 103 649 1,630 2,040 42,736 32.2% 19,323	84.6% 1.7% 0.7% 7.8% 0.2% 1.4% 3.6% 4.6% 95.4% 24.8% 1,855	5.5% 20.1% 3.4% 53.6% -5.5% 30.3% 52.1% 67.4% 8.1% 9.6%
Stevens County	43,531	40,066	8.6%	38,923 145 2,413 237 68 289 1,456 1,185 42,346 23.0% 21,156	89.4% 0.3% 5.5% 0.5% 0.2% 0.7% 3.3% 2.7% 97.3% 20.5% 3,840	7.9% 30.6% 6.5% 22.8% 3.0% 6.6% 34.7% 60.4% 7.7% 18.2%
Okanogan County	41,120	39,564	3.9%	30,399 159 4,675 237 31 4,163 1,456 7,227 33,893 50.8% 22,245	73.9% 0.4% 11.4% 0.6% 0.1% 10.1% 3.5% 17.6% 82.4% 46.5% 5,726	2.0% 45.9% 3.0% 34.7% 10.7% 9.8% 29.5% 27.1% 0.1% 25.7%
Kittitas County	40,915	33,362	22.6%	36,544 364 394 810 57 1,500 1,246 3,121 37,794 26.1% 21,900	89.3% 0.9% 1.0% 2.0% 0.1% 3.7% 3.0% 7.6% 92.4% 20.1% 5,305	19.4% 54.2% 30.0% 10.8% 16.3% 95.3% 89.4% 87.1% 19.2% 24.2%
Douglas County	38,431	32,603	17.9%	30,573 128 405 283 52 5,979 1,011 11,013 27,418 47.5% 16,004	79.6% 0.3% 1.1% 0.7% 0.1% 15.6% 2.6% 28.7% 71.3% 38.4% 2,110	10.8% 26.7% 14.1% 59.0% 67.7% 69.4% 25.0% 71.2% 4.8% 13.2%
Jefferson County	29,872	25,953	15.1%	27,198 246 681 464 63 200 1,020 848 29,024 20.5% 17,767	91.0% 0.8% 2.3% 1.6% 0.2% 0.7% 3.4% 2.8% 97.2% 17.2% 3,718	13.7% 123.6% 13.7% 50.2% 85.3% 1.5% 30.1% 58.5% 14.2% 20.9%
Asotin County	21,623	20,551	5.2%	20,392 92 302 117 36 163 521 643 20,980 14.9% 9,872	94.3% 0.4% 1.4% 0.5% 0.2% 0.8% 2.4% 3.0% 97.0% 10.9% 636	3.8% 135.9% 16.2% 11.4% 620.0% 26.4% 43.5% 60.3% 4.1% 6.4%
Pacific County	20,920	20,984	-0.3%	18,286 79 483 427 15 926 704 1,677 19,243 28.6% 15,547	87.4% 0.4% 2.3% 2.0% 0.1% 4.4% 3.4% 8.0% 92.0% 23.0% 6,048	-3.7% 88.1% -5.8% -2.1% -21.1% 141.1% 18.9% 59.4% -3.5% 38.9%
Klickitat County	20,318	19,161	6.0%	17,824 50 481 127 19 1,147 670 2,171 18,147 30.0% 9,786	87.7% 0.2% 2.4% 0.6% 0.1% 5.6% 3.3% 10.7% 89.3% 27.1% 1,459	6.2% -2.0% -27.7% -8.6% -53.7% 19.4% 27.4% 45.1% 2.7% 14.9%
Adams County	18,728	16,428	14.0%	11,703 109 356 125 4 5,899 532 11,099 7,629 56.9% 6,242	62.5% 0.6% 1.9% 0.7% 0.0% 31.5% 2.8% 59.3% 40.7% 55.9% 522	9.7% 137.0% 217.9% 26.3% -33.3% 17.0% 18.0% 43.5% -12.3% 8.4%
San Juan County	15,769	14,077	12.0%	14,597 54 111 181 15 412 399 857 14,912 18.9% 13,313	92.6% 0.3% 0.7% 1.1% 0.1% 2.6% 2.5% 5.4% 94.6% 12.4% 5,700	9.2% 50.0% -5.1% 44.8% 25.0% 221.9% 39.0% 153.6% 8.5% 42.8%
Pend Oreille County	13,001	11,732	10.8%	11,907 52 488 73 16 91 374 391 12,610 19.8% 7,936	91.6% 0.4% 3.8% 0.6% 0.1% 0.7% 2.9% 3.0% 97.0% 15.0% 2,457	8.5% 205.9% 44.4% -1.4% -33.3% 35.8% 56.5% 62.2% 9.7% 31.0%
Skamania County	11,066	9,872	12.1%	10,265 46 173 96 11 146 329 553 10,513 20.0% 5,628	92.8% 0.4% 1.6% 0.9% 0.1% 1.3% 3.0% 5.0% 95.0% 17.7% 1,106	12.9% 53.3% -20.3% 81.1% -35.3% -39.2% 48.2% 38.9% 11.0% 19.7%
Lincoln County	10,570	10,184	3.8%	10,038 28 173 41 5 49 236 239 10,331 13.0% 5,776	95.0% 0.3% 1.6% 0.4% 0.0% 0.5% 2.2% 2.3% 97.7% 10.8% 1,354	3.1% 21.7% 4.2% 64.0% -28.6% -16.9% 43.9% 25.1% 3.4% 23.4%
Ferry County	7,551	7,260	4.0%	5,758 26 1,259 52 8 89 359 254 7,297 41.7% 4,403	76.3% 0.3% 16.7% 0.7% 0.1% 1.2% 4.8% 3.4% 96.6% 40.4% 1,213	5.1% 73.3% -5.1% 147.6% 100.0% -45.1% 43.0% 23.9% 3.4% 27.5%
Columbia County	4,078	4,064	0.3%	3,791 12 58 23 14 71 109 254 3,824 20.9% 2,136	93.0% 0.3% 1.4% 0.6% 0.3% 1.7% 2.7% 6.2% 93.8% 18.2% 374	-0.5% 33.3% 48.7% 35.3% 600.0% -36.0% 41.6% -1.6% 0.5% 17.5%
Wahkiakum County	3,978	3,824	4.0%	3,738 10 52 23 6 26 123 108 3,870 15.2% 2,067	94.0% 0.3% 1.3% 0.6% 0.2% 0.7% 3.1% 2.7% 97.3% 14.2% 330	4.6% 0.0% -13.3% 27.8% 100.0% -58.7% 28.1% 10.2% 3.9% 16.0%
Garfield County	2,266	2,397	-5.5%	2,125 0 6 39 0 52 44 91 2,175 15.0% 1,233	93.8% 0.0% 0.3% 1.7% 0.0% 2.3% 1.9% 4.0% 96.0% 8.0% 244	-8.1% n/a -33.3% 143.8% -100.0% 57.6% 69.2% 93.6% -7.4% 19.8%

County name	Total households	Husband/wife with children	Husband/wife no children	Single male with children	Single male living alone	Single female with children	Single female living alone
King County	789,232	20.1%	25.2%	1.9%	14.6%	5.1%	16.4%
Pierce County	299,918	20.9%	28.1%	2.9%	11.6%	8.0%	13.5%
Snohomish County	268,325	23.6%	28.8%	2.7%	11.4%	6.0%	12.9%
Spokane County	187,167	18.8%	28.4%	2.7%	12.9%	6.8%	15.8%
Clark County	158,099	23.5%	30.1%	2.8%	10.4%	6.7%	12.7%
Thurston County	100,650	19.4%	30.5%	2.5%	10.9%	6.9%	15.0%
Kitsap County	97,220	20.2%	32.9%	2.4%	11.8%	6.1%	13.3%
Yakima County	80,592	23.7%	27.7%	4.0%	9.9%	9.4%	11.8%
Whatcom County	80,370	18.4%	29.6%	2.1%	12.8%	5.2%	15.0%
Benton County	65,304	23.1%	30.7%	3.0%	11.7%	7.1%	12.6%
Skagit County	45,557	18.8%	33.4%	2.7%	11.5%	6.0%	14.0%
Cowlitz County	40,244	17.7%	32.5%	3.3%	11.9%	7.2%	13.9%
Grant County	30,041	25.2%	29.5%	3.7%	11.1%	7.5%	11.0%
Island County	32,746	18.5%	38.1%	1.8%	11.5%	4.8%	14.5%
Franklin County	23,245	32.1%	25.9%	4.0%	8.5%	9.2%	7.9%
Lewis County	29,743	17.2%	34.0%	3.0%	12.2%	6.2%	13.5%
Grays Harbor County	28,579	15.0%	31.8%	3.3%	13.2%	6.5%	14.4%
Chelan County	27,827	20.6%	32.1%	2.8%	11.8%	6.0%	14.5%
Clallam County	31,329	12.4%	37.0%	2.4%	13.2%	5.2%	17.2%
Mason County	23,832	15.0%	37.5%	2.9%	12.7%	5.3%	12.7%
Walla Walla County	21,719	19.2%	31.0%	2.4%	12.0%	6.2%	16.2%
Whitman County	17,468	15.1%	23.3%	1.2%	16.1%	3.5%	16.6%
Stevens County	17,316	18.0%	38.3%	2.8%	12.3%	5.2%	12.2%
Okanogan County	16,519	16.3%	33.3%	3.2%	14.5%	6.2%	13.5%
Kittitas County	16,595	16.3%	28.4%	1.8%	14.6%	4.4%	14.1%
Douglas County	13,894	24.1%	33.7%	3.1%	9.8%	6.7%	11.0%
Jefferson County	14,049	10.4%	38.7%	1.7%	14.5%	4.1%	17.7%
Asotin County	9,236	14.5%	33.0%	2.3%	13.1%	7.5%	16.3%
Pacific County	9,499	11.4%	36.2%	2.5%	15.6%	4.2%	17.4%
Klickitat County	8,327	17.0%	37.4%	2.7%	13.5%	4.6%	12.9%
Adams County	5,720	31.2%	27.5%	4.1%	9.3%	8.1%	9.5%
San Juan County	7,613	11.7%	36.6%	2.1%	15.7%	4.1%	18.3%
Pend Oreille County	5,479	15.0%	37.3%	2.6%	15.5%	5.3%	12.7%
Skamania County	4,522	17.8%	36.6%	2.7%	13.8%	4.8%	11.7%
Lincoln County	4,422	17.1%	40.2%	2.1%	14.1%	4.4%	13.0%
Ferry County	3,190	11.9%	37.3%	3.8%	15.6%	5.0%	12.8%
Columbia County	1,762	14.6%	38.0%	2.2%	14.2%	5.4%	15.1%
Wahkiakum County	1,737	12.8%	44.4%	2.7%	13.1%	3.1%	13.6%
Garfield County	989	17.3%	38.3%	2.7%	13.5%	3.0%	16.7%

County name	Family households	Family households %	Families with kids	Families with kids %	Non-family households	Non-family households %	Households with seniors	Households with seniors %
King County	461,510	58.5%	213,507	27.1%	327,722	41.5%	154,215	19.5%
Pierce County	202,174	67.4%	95,397	31.8%	97,744	32.6%	63,783	21.3%
Snohomish County	182,282	67.9%	86,756	32.3%	86,043	32.1%	53,584	20.0%
Spokane County	118,212	63.2%	52,903	28.3%	68,955	36.8%	44,094	23.6%
Clark County	110,672	70.0%	52,276	33.1%	47,427	30.0%	35,395	22.4%
Thurston County	66,161	65.7%	29,050	28.9%	34,489	34.3%	23,458	23.3%
Kitsap County	65,820	67.7%	27,921	28.7%	31,400	32.3%	23,828	24.5%
Yakima County	58,790	72.9%	29,850	37.0%	21,802	27.1%	20,035	24.9%
Whatcom County	48,862	60.8%	20,676	25.7%	31,508	39.2%	19,079	23.7%
Benton County	45,699	70.0%	21,709	33.2%	19,605	30.0%	14,811	22.7%
Skagit County	30,656	67.3%	12,550	27.5%	14,901	32.7%	13,424	29.5%
Cowlitz County	27,241	67.7%	11,337	28.2%	13,003	32.3%	11,325	28.1%
Grant County	21,800	72.6%	10,957	36.5%	8,241	27.4%	7,443	24.8%
Island County	22,156	67.7%	8,238	25.2%	10,590	32.3%	10,033	30.6%
Franklin County	18,163	78.1%	10,534	45.3%	5,082	21.9%	4,050	17.4%
Lewis County	20,104	67.6%	7,871	26.5%	9,639	32.4%	9,313	31.3%
Grays Harbor County	18,493	64.7%	7,102	24.9%	10,086	35.3%	8,634	30.2%
Chelan County	18,795	67.5%	8,157	29.3%	9,032	32.5%	7,990	28.7%
Clallam County	19,713	62.9%	6,266	20.0%	11,616	37.1%	12,042	38.4%
Mason County	16,057	67.4%	5,547	23.3%	7,775	32.6%	7,743	32.5%
Walla Walla County	14,132	65.1%	6,038	27.8%	7,587	34.9%	6,241	28.7%
Whitman County	8,130	46.5%	3,451	19.8%	9,338	53.5%	3,047	17.4%
Stevens County	12,143	70.1%	4,503	26.0%	5,173	29.9%	5,306	30.6%
Okanogan County	10,914	66.1%	4,256	25.8%	5,605	33.9%	5,104	30.9%
Kittitas County	9,225	55.6%	3,727	22.5%	7,370	44.4%	3,794	22.9%
Douglas County	10,240	73.7%	4,706	33.9%	3,654	26.3%	3,769	27.1%
Jefferson County	8,394	59.7%	2,285	16.3%	5,655	40.3%	5,609	39.9%
Asotin County	5,914	64.0%	2,245	24.3%	3,322	36.0%	2,939	31.8%
Pacific County	5,707	60.1%	1,722	18.1%	3,792	39.9%	3,776	39.8%
Klickitat County	5,626	67.6%	2,021	24.3%	2,701	32.4%	2,614	31.4%
Adams County	4,410	77.1%	2,482	43.4%	1,310	22.9%	1,330	23.3%
San Juan County	4,438	58.3%	1,362	17.9%	3,175	41.7%	2,635	34.6%
Pend Oreille County	3,628	66.2%	1,253	22.9%	1,851	33.8%	1,804	32.9%
Skamania County	3,072	67.9%	1,145	25.3%	1,450	32.1%	1,155	25.5%
Lincoln County	3,059	69.2%	1,042	23.6%	1,363	30.8%	1,507	34.1%
Ferry County	2,070	64.9%	661	20.7%	1,120	35.1%	1,019	31.9%
Columbia County	1,156	65.6%	390	22.1%	606	34.4%	644	36.5%
Wahkiakum County	1,187	68.3%	323	18.6%	550	31.7%	697	40.1%
Garfield County	650	65.7%	228	23.1%	339	34.3%	351	35.5%

County name	Under 10	10-19	20-29	30-39	40-49	50-59	60-69	70-79	80 plus
King County	12.1%	11.8%	15.0%	15.6%	15.3%	14.0%	8.8%	4.2%	3.2%
Pierce County	13.7%	14.0%	14.4%	13.4%	14.5%	13.7%	8.8%	4.5%	2.9%
Snohomish County	13.2%	13.8%	13.2%	14.0%	15.7%	14.5%	8.6%	4.1%	2.8%
Spokane County	12.7%	13.8%	15.2%	12.1%	13.4%	14.1%	9.7%	5.1%	3.8%
Clark County	14.2%	14.8%	11.9%	13.7%	14.4%	13.8%	9.7%	4.5%	3.0%
Thurston County	12.3%	13.4%	13.4%	13.0%	13.8%	14.8%	10.6%	5.1%	3.5%
Kitsap County	11.9%	13.2%	14.2%	11.4%	14.0%	15.4%	11.2%	5.1%	3.5%
Yakima County	17.2%	16.4%	13.5%	12.6%	12.3%	11.8%	8.4%	4.6%	3.3%
Whatcom County	11.2%	13.9%	17.1%	11.8%	12.9%	13.7%	10.5%	5.2%	3.7%
Benton County	14.9%	15.0%	13.1%	12.4%	13.4%	13.9%	9.4%	4.7%	3.2%
Skagit County	12.8%	13.5%	11.9%	11.6%	12.8%	14.6%	11.7%	6.5%	4.6%
Cowlitz County	13.0%	13.8%	11.1%	11.8%	13.3%	14.8%	11.7%	6.2%	4.2%
Grant County	17.4%	16.3%	13.6%	12.5%	11.9%	11.6%	8.7%	4.9%	3.0%
Island County	11.3%	11.6%	13.0%	10.4%	12.3%	15.2%	14.1%	7.6%	4.4%
Franklin County	20.5%	16.8%	15.5%	14.9%	11.5%	10.0%	6.1%	3.0%	1.8%
Lewis County	12.1%	13.8%	11.3%	11.0%	12.9%	14.8%	12.3%	7.2%	4.6%
Grays Harbor County	11.5%	12.7%	11.8%	11.7%	13.1%	15.6%	12.7%	6.8%	4.1%
Chelan County	13.5%	14.2%	11.8%	11.3%	12.9%	14.8%	10.6%	6.3%	4.7%
Clallam County	9.5%	10.9%	10.1%	9.6%	11.3%	16.2%	15.7%	9.8%	6.9%
Mason County	10.9%	11.9%	11.0%	11.2%	13.1%	16.1%	13.7%	8.0%	4.2%
Walla Walla County	12.1%	14.7%	15.4%	11.5%	12.4%	13.3%	9.7%	5.7%	5.2%
Whitman County	8.5%	17.6%	33.5%	9.2%	8.6%	9.3%	6.7%	3.6%	2.9%
Stevens County	11.6%	14.8%	7.8%	9.8%	13.2%	17.5%	14.4%	7.2%	3.6%
Okanogan County	13.0%	12.9%	10.2%	10.7%	12.3%	16.1%	13.6%	7.4%	4.0%
Kittitas County	10.0%	14.7%	23.4%	9.8%	11.0%	12.7%	10.0%	5.1%	3.2%
Douglas County	14.7%	15.2%	11.8%	12.2%	12.8%	13.5%	10.2%	6.0%	3.6%
Jefferson County	7.3%	9.1%	7.5%	8.2%	11.4%	18.8%	20.9%	10.8%	5.9%
Asotin County	12.0%	12.3%	11.3%	10.5%	12.7%	15.1%	12.7%	8.4%	5.0%
Pacific County	9.4%	10.5%	8.6%	8.7%	11.6%	17.2%	17.5%	10.6%	6.0%
Klickitat County	11.4%	12.6%	8.7%	11.0%	12.9%	17.3%	14.8%	7.5%	3.8%
Adams County	20.4%	17.6%	13.4%	12.8%	11.2%	10.5%	7.1%	4.2%	2.8%
San Juan County	7.5%	9.7%	7.0%	8.9%	12.5%	19.7%	20.4%	9.2%	5.2%
Pend Oreille County	10.7%	12.8%	7.7%	9.1%	13.3%	18.4%	16.2%	7.9%	4.0%
Skamania County	11.3%	13.1%	8.6%	11.9%	14.9%	18.4%	12.9%	5.8%	3.1%
Lincoln County	11.3%	13.4%	7.5%	8.9%	12.2%	17.6%	14.7%	8.9%	5.3%
Ferry County	10.1%	12.9%	9.8%	8.7%	12.4%	18.2%	15.9%	8.2%	3.8%
Columbia County	10.1%	11.7%	8.3%	8.8%	13.6%	15.9%	16.1%	9.1%	6.4%
Wahkiakum County	8.8%	11.1%	6.5%	8.1%	12.3%	16.9%	20.2%	10.7%	5.3%
Garfield County	9.0%	13.5%	7.2%	9.8%	12.0%	17.8%	13.9%	8.6%	8.1%

County name	Total population	Median age	Male total	Male percentage	Female total	Female percentage
King County	1,931,249	37.1	962,090	49.8%	969,159	50.2%
Pierce County	795,225	35.9	392,934	49.4%	402,291	50.6%
Snohomish County	713,335	37.1	356,958	50.0%	356,377	50.0%
Spokane County	471,221	36.8	232,696	49.4%	238,525	50.6%
Clark County	425,363	36.7	209,954	49.4%	215,409	50.6%
Thurston County	252,264	38.5	122,952	48.7%	129,312	51.3%
Kitsap County	251,133	39.4	127,155	50.6%	123,978	49.4%
Yakima County	243,231	32.2	121,676	50.0%	121,555	50.0%
Whatcom County	201,140	36.6	99,635	49.5%	101,505	50.5%
Benton County	175,177	35.6	87,486	49.9%	87,691	50.1%
Skagit County	116,901	40.1	57,980	49.6%	58,921	50.4%
Cowlitz County	102,410	40.2	50,542	49.4%	51,868	50.6%
Grant County	89,120	32.1	45,420	51.0%	43,700	49.0%
Island County	78,506	43.2	38,857	49.5%	39,649	50.5%
Franklin County	78,163	28.4	40,447	51.7%	37,716	48.3%
Lewis County	75,455	41.5	37,750	50.0%	37,705	50.0%
Grays Harbor County	72,797	41.9	37,357	51.3%	35,440	48.7%
Chelan County	72,453	39.3	36,130	49.9%	36,323	50.1%
Clallam County	71,404	49	35,429	49.6%	35,975	50.4%
Mason County	60,699	44.4	31,400	51.7%	29,299	48.3%
Walla Walla County	58,781	36.7	29,835	50.8%	28,946	49.2%
Whitman County	44,776	24.4	22,806	50.9%	21,970	49.1%
Stevens County	43,531	45	21,782	50.0%	21,749	50.0%
Okanogan County	41,120	42.9	20,750	50.5%	20,370	49.5%
Kittitas County	40,915	31.9	20,793	50.8%	20,122	49.2%
Douglas County	38,431	36.8	19,198	50.0%	19,233	50.0%
Jefferson County	29,872	53.9	14,798	49.5%	15,074	50.5%
Asotin County	21,623	43.5	10,453	48.3%	11,170	51.7%
Pacific County	20,920	50.8	10,488	50.1%	10,432	49.9%
Klickitat County	20,318	45.3	10,268	50.5%	10,050	49.5%
Adams County	18,728	29	9,544	51.0%	9,184	49.0%
San Juan County	15,769	52.7	7,665	48.6%	8,104	51.4%
Pend Oreille County	13,001	47.8	6,593	50.7%	6,408	49.3%
Skamania County	11,066	44	5,565	50.3%	5,501	49.7%
Lincoln County	10,570	47.6	5,277	49.9%	5,293	50.1%
Ferry County	7,551	47.3	3,905	51.7%	3,646	48.3%
Columbia County	4,078	48.3	2,022	49.6%	2,056	50.4%
Wahkiakum County	3,978	52.3	1,999	50.3%	1,979	49.7%
Garfield County	2,266	49	1,118	49.3%	1,148	50.7%

* The USA TODAY Diversity Index represents the probability that two people from this area will have different ethnic backgrounds. A higher number reflects a more ethnically diverse population.