States › Washington › 2020
State, one year
Washington in 2020
Index change and building permits for the year, with every county.
In 2020 the FHFA house price index for Washington changed +5.1%, against +3.0% for the United States and +5.8% in 2019.
43,881 housing units were authorised by building permits in the state that year (23,542 single-family), −9.4% on 2019; the national total was 1,471,141.
Counties in 2020
Ranked by the county index change from 2019 to 2020 (FHFA annual county index). Permits are units authorised in 2020; per 1,000 uses the vintage 2025 population.
| County | Index change 2020 | Units permitted | Single-family | Per 1,000 |
|---|---|---|---|---|
| Adams County | +9.3% | 99 | 99 | 4.6 |
| Lincoln County | +8.5% | 56 | 56 | 4.7 |
| Grays Harbor County | +8.1% | 342 | 338 | 4.4 |
| Pend Oreille County | +7.7% | 80 | 80 | 5.5 |
| Lewis County | +7.6% | 382 | 327 | 4.3 |
| Pierce County | +7.4% | 4,922 | 2,664 | 5.2 |
| Spokane County | +7.3% | 3,170 | 1,662 | 5.7 |
| Stevens County | +7.2% | 192 | 186 | 3.9 |
| Thurston County | +7.2% | 1,161 | 708 | 3.8 |
| Mason County | +6.9% | 305 | 303 | 4.3 |
| Ferry County | +6.7% | 26 | 26 | 3.5 |
| Franklin County | +6.6% | 620 | 620 | 6.0 |
| Pacific County | +6.6% | 92 | 92 | 3.8 |
| Okanogan County | +6.5% | 197 | 163 | 4.4 |
| Grant County | +6.3% | 544 | 440 | 5.1 |
| San Juan County | +6.2% | 116 | 114 | 6.2 |
| Yakima County | +6.2% | 575 | 494 | 2.2 |
| Kitsap County | +5.9% | 1,285 | 909 | 4.5 |
| Skagit County | +5.9% | 561 | 300 | 4.2 |
| Cowlitz County | +5.8% | 346 | 331 | 3.0 |
| Benton County | +5.6% | 1,345 | 1,125 | 6.1 |
| Island County | +5.5% | 445 | 329 | 5.2 |
| Asotin County | +5.4% | 161 | 87 | 7.1 |
| Whitman County | +5.3% | 98 | 90 | 2.0 |
| Jefferson County | +5.2% | 157 | 155 | 4.6 |
| Chelan County | +5.0% | 670 | 473 | 8.2 |
| Columbia County | +5.0% | 10 | 7 | 2.4 |
| Snohomish County | +5.0% | 5,780 | 2,508 | 6.6 |
| Whatcom County | +4.8% | 1,382 | 718 | 5.8 |
| Klickitat County | +4.4% | 124 | 105 | 5.1 |
| Skamania County | +4.4% | 82 | 82 | 6.5 |
| Clark County | +4.3% | 5,022 | 3,220 | 9.4 |
| Kittitas County | +4.2% | 414 | 378 | 8.5 |
| Wahkiakum County | +4.2% | 25 | 21 | 5.1 |
| Walla Walla County | +4.2% | 154 | 132 | 2.5 |
| Clallam County | +4.1% | 279 | 275 | 3.6 |
| Douglas County | +3.7% | 321 | 233 | 6.9 |
| King County | +3.5% | 12,337 | 3,688 | 5.3 |
| Garfield County | +1.6% | 4 | 4 | 1.7 |
Permits by year, 1995–2025
Housing units authorised in Washington by yearsingle-family2+ unit buildings
Source: Federal Housing Finance Agency annual state and county house price indexes (updated March 31, 2026); Census Bureau Building Permits Survey annual state and county files. Public domain. Methodology.