Washington is the twelfth richest state in the United States of America, with a per capita income of $22,973 (2000) and a personal per capita income of $33,332 (2003).
Note: Data is from the 2010 United States Census Data and the 2006-2010 American Community Survey 5-Year Estimates.[1][2]
| Rank | County | Per capita income |
Median household income |
Median family income |
Population (2010) | Number of households |
|---|---|---|---|---|---|---|
| 1 | King | $38,211 | $68,065 | $87,010 | 1,931,249 | 789,232 |
| 2 | San Juan | $35,487 | $50,726 | $61,096 | 15,769 | 7,613 |
| 3 | Snohomish | $30,635 | $66,300 | $77,479 | 713,335 | 268,325 |
| 4 | Kitsap | $29,755 | $59,549 | $71,065 | 251,133 | 97,220 |
| Washington | $29,733 | $57,244 | $69,328 | 6,724,540 | 2,620,076 | |
| 5 | Thurston | $29,707 | $60,930 | $71,833 | 252,264 | 100,650 |
| 6 | Island | $29,079 | $57,190 | $68,106 | 78,506 | 32,746 |
| 7 | Jefferson | $28,528 | $46,048 | $59,964 | 29,872 | 14,049 |
| 8 | Clark | $27,828 | $58,262 | $67,352 | 425,363 | 158,099 |
| 9 | Pierce | $27,446 | $57,869 | $68,462 | 795,225 | 299,918 |
| United States | $27,334 | $51,914 | $62,982 | 308,745,538 | 116,716,292 | |
| 10 | Benton | $27,161 | $57,354 | $69,834 | 175,177 | 65,304 |
| 11 | Skagit | $26,925 | $54,811 | $63,468 | 116,901 | 45,557 |
| 12 | Columbia | $25,810 | $43,611 | $53,452 | 4,078 | 1,762 |
| 13 | Whatcom | $25,407 | $49,031 | $64,586 | 201,140 | 80,370 |
| 14 | Spokane | $25,127 | $47,250 | $59,999 | 471,221 | 187,167 |
| 15 | Lincoln | $24,757 | $45,582 | $52,083 | 10,570 | 4,422 |
| 16 | Clallam | $24,449 | $44,398 | $54,837 | 71,404 | 31,329 |
| 17 | Chelan | $24,378 | $48,674 | $57,856 | 72,453 | 27,827 |
| 18 | Skamania | $24,140 | $48,704 | $61,540 | 11,066 | 4,522 |
| 19 | Asotin | $23,731 | $41,665 | $52,250 | 21,623 | 9,236 |
| 20 | Kittitas | $23,467 | $41,232 | $61,276 | 40,915 | 16,595 |
| 21 | Pacific | $23,326 | $39,642 | $51,450 | 20,920 | 9,499 |
| 22 | Wahkiakum | $23,115 | $40,372 | $47,266 | 3,978 | 1,737 |
| 23 | Walla Walla | $23,027 | $45,575 | $55,773 | 58,781 | 21,719 |
| 24 | Cowlitz | $22,948 | $45,877 | $55,002 | 102,410 | 40,244 |
| 25 | Garfield | $22,825 | $42,269 | $55,769 | 2,266 | 989 |
| 26 | Pend Oreille | $22,546 | $38,896 | $46,971 | 13,001 | 5,479 |
| 27 | Mason | $22,530 | $48,104 | $56,809 | 60,699 | 23,832 |
| 28 | Douglas | $22,359 | $48,708 | $55,766 | 38,431 | 13,894 |
| 29 | Stevens | $21,773 | $42,845 | $51,544 | 43,531 | 17,316 |
| 30 | Lewis | $21,695 | $43,874 | $53,358 | 75,455 | 29,743 |
| 31 | Grays Harbor | $21,656 | $41,899 | $49,745 | 72,797 | 28,579 |
| 32 | Klickitat | $21,553 | $37,398 | $46,012 | 20,318 | 8,327 |
| 33 | Okanogan | $20,093 | $38,551 | $48,418 | 41,120 | 16,519 |
| 34 | Grant | $19,718 | $42,572 | $50,065 | 89,120 | 30,041 |
| 35 | Whitman | $19,506 | $36,368 | $61,598 | 44,776 | 17,468 |
| 36 | Yakima | $19,325 | $42,877 | $48,004 | 243,231 | 80,592 |
| 37 | Franklin | $18,660 | $47,749 | $52,218 | 78,163 | 23,245 |
| 38 | Ferry | $18,021 | $35,485 | $43,576 | 7,551 | 3,190 |
| 39 | Adams | $16,689 | $40,829 | $43,551 | 18,728 | 5,720 |