States › Washington › 2017
State, one year
Washington in 2017
Index change and building permits for the year, with every county.
In 2017 the FHFA house price index for Washington changed +10.2%, against +5.4% for the United States and +10.8% in 2016.
45,794 housing units were authorised by building permits in the state that year (23,115 single-family), +3.9% on 2016; the national total was 1,281,977.
Counties in 2017
Ranked by the county index change from 2016 to 2017 (FHFA annual county index). Permits are units authorised in 2017; per 1,000 uses the vintage 2025 population.
| County | Index change 2017 | Units permitted | Single-family | Per 1,000 |
|---|---|---|---|---|
| Wahkiakum County | +14.2% | 20 | 20 | 4.1 |
| King County | +12.7% | 18,641 | 4,356 | 7.9 |
| Lewis County | +12.4% | 234 | 218 | 2.7 |
| Mason County | +12.3% | 212 | 208 | 3.0 |
| Snohomish County | +12.2% | 3,725 | 2,627 | 4.3 |
| Pierce County | +11.6% | 4,968 | 3,014 | 5.2 |
| Whatcom County | +11.1% | 1,256 | 793 | 5.3 |
| Klickitat County | +10.9% | 115 | 99 | 4.7 |
| Skagit County | +10.4% | 663 | 534 | 5.0 |
| Clallam County | +10.2% | 307 | 287 | 3.9 |
| Kitsap County | +10.1% | 1,094 | 952 | 3.9 |
| Lincoln County | +9.9% | 43 | 43 | 3.6 |
| Clark County | +9.8% | 3,787 | 2,080 | 7.1 |
| Benton County | +9.7% | 1,111 | 848 | 5.0 |
| Island County | +9.7% | 408 | 401 | 4.8 |
| Thurston County | +9.7% | 1,067 | 950 | 3.5 |
| Kittitas County | +9.6% | 531 | 364 | 10.9 |
| San Juan County | +9.6% | 115 | 112 | 6.2 |
| Douglas County | +9.5% | 187 | 185 | 4.0 |
| Grays Harbor County | +9.5% | 251 | 251 | 3.2 |
| Chelan County | +9.3% | 442 | 414 | 5.4 |
| Cowlitz County | +9.3% | 484 | 464 | 4.2 |
| Skamania County | +9.3% | 58 | 58 | 4.6 |
| Spokane County | +9.2% | 3,460 | 1,608 | 6.2 |
| Franklin County | +9.1% | 698 | 609 | 6.8 |
| Jefferson County | +8.5% | 172 | 172 | 5.1 |
| Okanogan County | +7.9% | 144 | 138 | 3.2 |
| Pend Oreille County | +7.4% | 41 | 41 | 2.8 |
| Yakima County | +7.3% | 434 | 412 | 1.7 |
| Walla Walla County | +6.3% | 144 | 144 | 2.3 |
| Pacific County | +6.0% | 85 | 85 | 3.5 |
| Ferry County | +5.6% | 0 | 0 | 0.0 |
| Stevens County | +5.6% | 140 | 136 | 2.8 |
| Adams County | +5.3% | 31 | 23 | 1.4 |
| Grant County | +4.7% | 445 | 350 | 4.2 |
| Whitman County | +4.5% | 242 | 80 | 5.0 |
| Asotin County | +3.5% | 34 | 34 | 1.5 |
| Columbia County | −0.1% | 4 | 4 | 1.0 |
| Garfield County | −2.4% | 1 | 1 | 0.4 |
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.