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

Name: Counties in Washington by county house price index, 1990 = 100, 2023
Creator: Federal Housing Finance Agency
License: Public domain (US government work); citation requested

Walla Walla County had the highest county house price index, 1990 = 100 of 29 counties in 2023, at 609.69 index. Clallam County had the lowest, at 445.08 index. The median was 514.8 index. Source: the Federal Housing Finance Agency.

Highest609.69Walla Walla County

Lowest445.08Clallam County

Median514.829 counties

All counties, 2023

CSV Chart (SVG)

index. Source: FHFA. Retrieved 2026-10-10.

Full ranking

Rank	Counties	2023 index	Change on 2022
1	Walla Walla County	609.69	+4.44
2	Kittitas County	606.32	+8.01
3	Chelan County	577.8	+17.21
4	Lewis County	567.83	+5.96
5	Adams County	556.76	+45.02
6	Douglas County	545.17	+33.39
7	Whatcom County	541.52	+5.33
8	Clark County	535.32	+10.77
9	Mason County	534.99	+17.5
10	Grays Harbor County	530.26	+4.28
11	Spokane County	529.38	+3.79
12	Asotin County	527.74	+12.5
13	Pierce County	527.64	+3.81
14	Thurston County	519.72	+7.64
15	King County	514.8	+0.84
16	Skagit County	512.84	+12.5
17	Stevens County	509.41	+8.86
18	Jefferson County	504.12	+12.99
19	Kitsap County	498.81	-1.43
20	Cowlitz County	493.66	+0.57
21	Snohomish County	492.49	+9.16
22	Grant County	491.11	+31.36
23	Whitman County	486.77	+28.07
24	Franklin County	484.6	+9.42
25	Island County	483.52	+22.94
26	Okanogan County	481.54	+18.83
27	Yakima County	448.95	+19.03
28	Benton County	446.64	+10.32
29	Clallam County	445.08	+13.23

Other periods

About this ranking

Annual FHFA all-transactions index of single-family house prices in US counties, with 1990 equal to 100.

Developmental nominal index, not seasonally adjusted. Uses sale prices and refinance appraisals for mortgages purchased or guaranteed by Fannie Mae or Freddie Mac. Differs from purchase-only indexes. Missing estimates and unavailable base-year values remain absent. Historical estimates can be revised.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

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.

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Rank Counties in Washington by county house price index, 1990 = 100 using official data, and cite the source.

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Questions

Which county has the highest county house price index, 1990 = 100?

Walla Walla County, with 609.69 index in 2023, according to the Federal Housing Finance Agency.

Which county has the lowest county house price index, 1990 = 100?

Clallam County, with 445.08 index in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Federal Housing Finance Agency, FHFA developmental all-transactions county house price index, annual, nominal, not seasonally adjusted, 1990 = 100. Retrieved 2026-10-10.