The graph below ranks each Washington County by total of American Indian residents according to the 2012 census estimates.
Washington total of American Indian population by county
| County | American Indian Population |
| King |  20,076 |
| Yakima | 14,046 |
| Pierce | 12,993 |
| Snohomish | 11,727 |
| Spokane | 8,091 |
| Whatcom | 6,353 |
| Okanogan | 5,073 |
| Clark | 4,379 |
| Kitsap | 4,329 |
| Thurston | 4,138 |
| Clallam | 3,882 |
| Grays Harbor | 3,802 |
| Skagit | 3,188 |
| Mason | 2,613 |
| Stevens | 2,442 |
| Benton | 2,189 |
| Cowlitz | 1,935 |
| Grant | 1,739 |
| Lewis | 1,359 |
| Ferry | 1,310 |
| Chelan | 1,251 |
| Franklin | 1,115 |
| Adams | 776 |
| Walla Walla | 772 |
| Douglas | 747 |
| Island | 714 |
| Jefferson | 686 |
| Klickitat | 578 |
| Pacific | 577 |
| Pend Oreille | 506 |
| Kittitas | 458 |
| Asotin | 328 |
| Whitman | 325 |
| Lincoln | 209 |
| Skamania | 201 |
| San Juan | 126 |
| Columbia | 60 |
| Wahkiakum | 60 |
| Garfield | 7 |