Market insights · WA
Washington: where people are moving, county by county
Washington has 8,001,020 residents across 39 counties, up 3.6% in five years. Net movement with other states in 2022–2023: +9,821 tax returns and -$266.1M in income. Strongest net in-migration: Jefferson County, Skamania County, Klickitat County.
All 39 counties
Largest first. Growth is the five-year change in Census population estimates; net movement is IRS tax returns (roughly households) moving in minus out, per 1,000 residents, 2022–2023. BizyFi calculations from those totals. Income, home value and rent: Census ACS 5-year 2024.
| County | Population | 5-yr growth | Net per 1,000 | Net income in | Median income | Median home | Median rent | |
|---|---|---|---|---|---|---|---|---|
| King County | 2,344,939 | +3.1% | -0.1 | -$1.96B | $124,746 | $859,900 | $2,092 | Map |
| Pierce County | 946,288 | +2.5% | +1.2 | +$165.4M | $99,564 | $526,600 | $1,806 | Map |
| Snohomish County | 870,656 | +4.9% | +1.7 | +$261.2M | $111,246 | $696,000 | $1,949 | Map |
| Spokane County | 558,344 | +3.2% | +1.1 | +$32.7M | $78,582 | $410,700 | $1,283 | Map |
| Clark County | 532,119 | +5.3% | +3.1 | +$291.9M | $97,536 | $522,900 | $1,748 | Map |
| Thurston County | 304,261 | +2.8% | +3.8 | +$82.6M | $96,563 | $480,300 | $1,736 | Map |
| Kitsap County | 283,374 | +2.7% | +2.2 | +$119.0M | $104,158 | $555,100 | $1,822 | Map |
| Yakima County | 259,185 | +1.0% | -3.1 | -$38.3M | $70,656 | $310,100 | $1,109 | Map |
| Whatcom County | 236,392 | +3.9% | +2.9 | +$71.6M | $81,784 | $585,800 | $1,555 | Map |
| Benton County | 221,722 | +6.9% | +2.4 | +$11.2M | $89,874 | $407,800 | $1,306 | Map |
| Skagit County | 132,975 | +2.4% | +1.9 | +$52.9M | $89,263 | $545,100 | $1,536 | Map |
| Cowlitz County | 114,885 | +3.5% | +2.1 | +$37.6M | $76,531 | $397,500 | $1,206 | Map |
| Grant County | 105,727 | +6.3% | +0.9 | +$6.3M | $73,267 | $299,500 | $1,116 | Map |
| Franklin County | 102,612 | +5.6% | -0.9 | +$3.0M | $86,714 | $379,300 | $1,198 | Map |
| Lewis County | 88,062 | +6.7% | +4.0 | +$49.3M | $74,796 | $385,800 | $1,097 | Map |
| Island County | 85,657 | -1.5% | +1.8 | +$74.8M | $90,551 | $593,300 | $1,662 | Map |
| Chelan County | 81,941 | +3.3% | +0.7 | +$58.1M | $82,381 | $490,100 | $1,226 | Map |
| Clallam County | 78,202 | +1.1% | +4.5 | +$82.4M | $70,370 | $421,800 | $1,152 | Map |
| Grays Harbor County | 78,144 | +3.0% | +3.1 | +$34.8M | $64,414 | $314,000 | $1,062 | Map |
| Mason County | 71,165 | +7.8% | +4.7 | +$44.3M | $83,270 | $411,800 | $1,285 | Map |
| Walla Walla County | 62,361 | -0.4% | -0.1 | +$41.6M | $74,202 | $408,900 | $1,218 | Map |
| Stevens County | 49,668 | +6.6% | +1.9 | +$16.0M | $69,327 | $350,600 | $898 | Map |
| Kittitas County | 48,803 | +4.2% | +3.6 | +$63.5M | $73,804 | $497,400 | $1,341 | Map |
| Whitman County | 48,512 | +1.5% | -0.4 | -$18.6M | $55,406 | $359,600 | $1,049 | Map |
| Douglas County | 46,473 | +8.0% | -0.8 | +$13.1M | $80,363 | $432,500 | $1,305 | Map |
| Okanogan County | 45,230 | +7.3% | +0.8 | +$12.0M | $63,207 | $299,800 | $887 | Map |
| Jefferson County | 33,970 | +2.7% | +7.9 | +$40.7M | $74,048 | $535,000 | $1,522 | Map |
| Pacific County | 24,357 | +3.6% | +4.8 | +$16.9M | $67,081 | $334,800 | $1,005 | Map |
| Klickitat County | 24,331 | +6.6% | +5.6 | +$18.8M | $71,042 | $425,300 | $1,105 | Map |
| Asotin County | 22,545 | +1.0% | +1.1 | +$7.0M | $72,283 | $325,600 | $1,043 | Map |
| Adams County | 21,488 | +4.3% | -5.4 | -$4.7M | $66,136 | $273,300 | $877 | Map |
| San Juan County | 18,577 | +4.2% | +0.5 | +$12.9M | $84,800 | $799,200 | $1,512 | Map |
| Pend Oreille County | 14,457 | +7.0% | +4.9 | +$7.3M | $67,436 | $367,900 | $855 | Map |
| Skamania County | 12,669 | +5.2% | +5.9 | +$18.2M | $93,265 | $529,500 | $1,068 | Map |
| Lincoln County | 11,982 | +9.7% | +3.1 | +$5.3M | $71,512 | $292,800 | $883 | Map |
| Ferry County | 7,517 | +4.4% | 0.0 | +$0.9M | $55,614 | $283,400 | $663 | Map |
| Wahkiakum County | 4,873 | +9.6% | +9.6 | +$3.8M | $62,653 | $396,800 | $853 | Map |
| Columbia County | 4,141 | +4.7% | +2.7 | +$0.1M | $71,810 | $271,200 | $985 | Map |
| Garfield County | 2,416 | +5.2% | +2.5 | +$0.3M | $64,884 | $239,200 | $791 | Map |
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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Growth, per-1,000 and state totals are BizyFi calculations; the IRS suppresses very small flows, shown as –. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.