Demographics Table
Demographic Data Report for Washington by County
Population: Age 40 and over
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age 40 And Over)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| Washington | N/A | 47.5 | 3,714,629 | 37 of 52 |
| United States | N/A | 48.5 | 162,458,898 | N/A |
| Whitman County | Rural | 32.4 | 15,221 | 3,129 |
| Franklin County | Urban | 37.0 | 36,619 | 3,098 |
| Adams County | Rural | 37.2 | 7,742 | 3,097 |
| Yakima County | Urban | 41.6 | 106,980 | 2,958 |
| Grant County | Rural | 42.1 | 42,837 | 2,941 |
| Benton County | Urban | 44.5 | 94,846 | 2,805 |
| Kittitas County | Rural | 45.3 | 21,392 | 2,747 |
| King County | Urban | 45.5 | 1,041,568 | 2,724 |
| Pierce County | Urban | 45.6 | 424,215 | 2,712 |
| Snohomish County | Urban | 47.6 | 401,720 | 2,472 |
| Whatcom County | Urban | 47.8 | 110,210 | 2,442 |
| Spokane County | Urban | 48.0 | 263,289 | 2,419 |
| Walla Walla County | Urban | 48.0 | 29,830 | 2,419 |
| Douglas County | Urban | 48.5 | 21,517 | 2,339 |
| Clark County | Urban | 48.7 | 251,973 | 2,309 |
| Thurston County | Urban | 50.1 | 149,699 | 2,012 |
| Kitsap County | Urban | 50.3 | 139,689 | 1,962 |
| Chelan County | Urban | 50.4 | 40,406 | 1,939 |
| Cowlitz County | Urban | 52.2 | 58,683 | 1,488 |
| Lewis County | Rural | 52.7 | 44,842 | 1,344 |
| Skagit County | Urban | 52.8 | 69,398 | 1,325 |
| Okanogan County | Rural | 53.8 | 23,382 | 1,103 |
| Grays Harbor County | Rural | 55.3 | 42,604 | 799 |
| Island County | Rural | 55.4 | 48,096 | 781 |
| Mason County | Rural | 55.5 | 37,702 | 766 |
| Asotin County | Urban | 56.7 | 12,745 | 595 |
| Lincoln County | Rural | 56.7 | 6,512 | 595 |
| Stevens County | Urban | 57.5 | 27,618 | 497 |
| Klickitat County | Rural | 58.7 | 13,732 | 372 |
| Garfield County | Rural | 59.3 | 1,395 | 330 |
| Skamania County | Urban | 60.1 | 7,449 | 258 |
| Pend Oreille County | Rural | 60.3 | 8,471 | 248 |
| Columbia County | Rural | 62.3 | 2,499 | 158 |
| Clallam County | Rural | 62.5 | 48,627 | 151 |
| Wahkiakum County | Rural | 65.3 | 3,041 | 68 |
| Ferry County | Rural | 65.5 | 4,837 | 62 |
| Pacific County | Rural | 66.7 | 16,002 | 50 |
| San Juan County | Rural | 70.0 | 12,934 | 21 |
| Jefferson County | Rural | 72.4 | 24,307 | 7 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/24/2026 10:28 am.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 40 and over, see the dictionary.
Data for United States does not include Puerto Rico.