# Counties in Washington by county house price index, 1990 = 100, 2025

All 29 values come from Federal Housing Finance Agency for 2025, so the places are comparable.

- Indicator id: `house_price_index_us_county_annual_1990`
- Unit: index
- Definition: Annual FHFA all-transactions index of single-family house prices in US counties, with 1990 equal to 100.
- Source: Federal Housing Finance Agency, FHFA developmental all-transactions county house price index, annual, nominal, not seasonally adjusted, 1990 = 100 (https://www.fhfa.gov/hpi/download/annual/hpi_at_county.xlsx)
- Retrieved: 2026-10-10
- Citation: Federal Housing Finance Agency (FHFA). FHFA developmental all-transactions county house price index, annual, nominal, not seasonally adjusted, 1990 = 100. https://www.fhfa.gov/hpi/download/annual/hpi_at_county.xlsx. Retrieved 2026-10-10.
- Web page: https://invokely.ai/rankings/county-house-price-index-1990/washington-counties
- CSV: https://invokely.ai/download/rankings/county-house-price-index-1990/washington-counties.csv

| Rank | Place | index |
|---:|---|---:|
| 1 | Walla Walla County | 646.38 |
| 2 | Kittitas County | 633.13 |
| 3 | Lewis County | 617.32 |
| 4 | Chelan County | 610.15 |
| 5 | Whatcom County | 594.14 |
| 6 | Mason County | 589.37 |
| 7 | Adams County | 580.4 |
| 8 | Asotin County | 575.97 |
| 9 | Douglas County | 573.66 |
| 10 | Pierce County | 565.19 |
| 11 | Grays Harbor County | 564.26 |
| 12 | Clark County | 559.77 |
| 13 | Skagit County | 557.44 |
| 14 | Thurston County | 556.16 |
| 15 | Spokane County | 555.28 |
| 16 | King County | 544.58 |
| 17 | Jefferson County | 537.69 |
| 18 | Stevens County | 537.23 |
| 19 | Snohomish County | 531.27 |
| 20 | Kitsap County | 529.83 |
| 21 | Cowlitz County | 527.02 |
| 22 | Okanogan County | 525.66 |
| 23 | Island County | 511.68 |
| 24 | Grant County | 507.7 |
| 25 | Franklin County | 499.25 |
| 26 | Whitman County | 491.09 |
| 27 | Yakima County | 483.6 |
| 28 | Clallam County | 483.41 |
| 29 | Benton County | 471.92 |