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

Name: Counties in Iowa by county house price index, 1990 = 100, 2018
Creator: Federal Housing Finance Agency
License: Public domain (US government work); citation requested

Sioux County had the highest county house price index, 1990 = 100 of 35 counties in 2018, at 301.79 index. Montgomery County had the lowest, at 186 index. The median was 231.41 index. Source: the Federal Housing Finance Agency.

Highest301.79Sioux County

Lowest186Montgomery County

Median231.4135 counties

All counties, 2018

CSV Chart (SVG)

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

Full ranking

Rank	Counties	2018 index	Change on 2017
1	Sioux County	301.79	+9.31
2	Boone County	279.03	+12.88
3	Hardin County	262.92	+3.09
4	Hancock County	260.99	+11.38
5	Poweshiek County	259.25	+15.08
6	Black Hawk County	257.48	+9.54
7	Bremer County	250.64	+4.79
8	Clay County	249.94	+8.9
9	Marion County	247.25	+11.24
10	Dubuque County	246.62	+6.61
11	Floyd County	245.64	+17.18
12	Cerro Gordo County	245.05	+7.07
13	Mahaska County	244.7	+11.05
14	Woodbury County	244.55	+12.6
15	Story County	241.12	+7.7
16	Johnson County	233.85	+9
17	Scott County	233.75	+6.08
18	Dallas County	231.41	+5.33
19	Warren County	231.12	+9.14
20	Pottawattamie County	231.11	+10.1
21	Polk County	229.64	+9.66
22	Clinton County	228.9	+4.96
23	Wapello County	226.6	+6.87
24	Lee County	226.02	-1.44
25	Muscatine County	225.91	+9.47
26	Winnebago County	225.58	+18.14
27	Marshall County	222.67	+11.65
28	Carroll County	222	+5.46
29	Webster County	213.6	+9.09
30	Henry County	210.19	+6.4
31	Des Moines County	206.42	+3.79
32	Linn County	204.26	+6.53
33	Jasper County	202.42	+6.34
34	Jefferson County	188.25	-2.24
35	Montgomery County	186	+7.59

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.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

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

rank_places {"indicator":"house_price_index_us_county_annual_1990","level":"province","within":"Iowa","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=house_price_index_us_county_annual_1990&level=province&within=Iowa&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

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

Sioux County, with 301.79 index in 2018, according to the Federal Housing Finance Agency.

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

Montgomery County, with 186 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.