Data / Rankings / County house price index, 1990 = 100 / Counties in Maine

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

Knox County had the highest county house price index, 1990 = 100 of 11 counties in 2025, at 457.21 index. Kennebec County had the lowest, at 310.73 index. The median was 357.67 index. Source: the Federal Housing Finance Agency.

Highest457.21Knox County
Lowest310.73Kennebec County
Median357.6711 counties

All counties, 2025

CSVChart (SVG)

Knox CountyKnox County: 457.21 index457.21Cumberland CountyCumberland County: 416.34 index416.34York CountyYork County: 410.18 index410.18Hancock CountyHancock County: 381.74 index381.74Somerset CountySomerset County: 359.92 index359.92Sagadahoc CountySagadahoc County: 357.67 index357.67Androscoggin CountyAndroscoggin County: 329.93 index329.93Aroostook CountyAroostook County: 326.68 index326.68Penobscot CountyPenobscot County: 321.13 index321.13Oxford CountyOxford County: 315.06 index315.06Kennebec CountyKennebec County: 310.73 index310.73
index. Source: FHFA. Retrieved 2026-10-10.

Full ranking

RankCounties2025
index		Change on 2024
1Knox County457.21+16.58
2Cumberland County416.34+16.26
3York County410.18+22.04
4Hancock County381.74+13.51
5Somerset County359.92+31.79
6Sagadahoc County357.67+12.97
7Androscoggin County329.93+21.53
8Aroostook County326.68+25.76
9Penobscot County321.13+14.12
10Oxford County315.06+16.98
11Kennebec County310.73+15.1

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 Maine 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?

Knox County, with 457.21 index in 2025, according to the Federal Housing Finance Agency.

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

Kennebec County, with 310.73 index in 2025.

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.

County house price index, 1990 = 100: other rankings

Counties in Maine: more rankings