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

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

Knox County had the highest county house price index, 1990 = 100 of 11 counties in 2018, at 226.54 index. Oxford County had the lowest, at 159.09 index. The median was 188.54 index. Source: the Federal Housing Finance Agency.

Highest226.54Knox County
Lowest159.09Oxford County
Median188.5411 counties

All counties, 2018

CSVChart (SVG)

Knox CountyKnox County: 226.54 index226.54Cumberland CountyCumberland County: 226.29 index226.29York CountyYork County: 223.97 index223.97Hancock CountyHancock County: 200.76 index200.76Sagadahoc CountySagadahoc County: 189.36 index189.36Aroostook CountyAroostook County: 188.54 index188.54Somerset CountySomerset County: 177.08 index177.08Penobscot CountyPenobscot County: 172.2 index172.2Androscoggin CountyAndroscoggin County: 171.81 index171.81Kennebec CountyKennebec County: 165.73 index165.73Oxford CountyOxford County: 159.09 index159.09
index. Source: FHFA. Retrieved 2026-10-10.

Full ranking

RankCounties2018
index		Change on 2017
1Knox County226.54+13.49
2Cumberland County226.29+13.57
3York County223.97+13.92
4Hancock County200.76-0.81
5Sagadahoc County189.36+8.45
6Aroostook County188.54+9.11
7Somerset County177.08+2.28
8Penobscot County172.2+6.19
9Androscoggin County171.81+10.66
10Kennebec County165.73+11.04
11Oxford County159.09+7.8

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 226.54 index in 2018, according to the Federal Housing Finance Agency.

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

Oxford County, with 159.09 index in 2018.

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