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

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

Adams County had the highest county house price index, 1990 = 100 of 55 counties in 2018, at 226.16 index. Winnebago County had the lowest, at 143.61 index. The median was 181.15 index. Source: the Federal Housing Finance Agency.

Highest226.16Adams County
Lowest143.61Winnebago County
Median181.1555 counties

All counties, 2018

CSVChart (SVG)

Adams CountyAdams County: 226.16 index226.16Fayette CountyFayette County: 224.75 index224.75Henry CountyHenry County: 217.18 index217.18Fulton CountyFulton County: 215.13 index215.13Ford CountyFord County: 213.27 index213.27Christian CountyChristian County: 212.68 index212.68Rock Island CountyRock Island County: 212.04 index212.04Franklin CountyFranklin County: 211.12 index211.12Douglas CountyDouglas County: 206.52 index206.52Tazewell CountyTazewell County: 205.6 index205.6Clinton CountyClinton County: 205.25 index205.25Macoupin CountyMacoupin County: 204.46 index204.46DuPage CountyDuPage County: 203.86 index203.86Woodford CountyWoodford County: 201.38 index201.38Cook CountyCook County: 197.88 index197.88Monroe CountyMonroe County: 197.15 index197.15Knox CountyKnox County: 196.8 index196.8Grundy CountyGrundy County: 194.53 index194.53Piatt CountyPiatt County: 190.66 index190.66Marion CountyMarion County: 190.15 index190.15McDonough CountyMcDonough County: 188.7 index188.7Williamson CountyWilliamson County: 188.42 index188.42Jo Daviess CountyJo Daviess County: 186.94 index186.94Madison CountyMadison County: 186.38 index186.38Whiteside CountyWhiteside County: 185.16 index185.16Champaign CountyChampaign County: 182.78 index182.78Livingston CountyLivingston County: 181.35 index181.35Lee CountyLee County: 181.15 index181.15LaSalle CountyLaSalle County: 180.11 index180.11Montgomery CountyMontgomery County: 178.83 index178.83McLean CountyMcLean County: 178.6 index178.6De Witt CountyDe Witt County: 178.24 index178.24Logan CountyLogan County: 177.98 index177.98Will CountyWill County: 177.42 index177.42Jersey CountyJersey County: 176.55 index176.55Kankakee CountyKankakee County: 175.83 index175.83Peoria CountyPeoria County: 173.93 index173.93Morgan CountyMorgan County: 173.57 index173.57Jackson CountyJackson County: 171.61 index171.61Bureau CountyBureau County: 170.32 index170.32Kane CountyKane County: 170.08 index170.08Ogle CountyOgle County: 170.06 index170.06Kendall CountyKendall County: 169.7 index169.7Coles CountyColes County: 168.14 index168.14Jefferson CountyJefferson County: 167.15 index167.15Sangamon CountySangamon County: 165.45 index165.45Lake CountyLake County: 163.08 index163.08Macon CountyMacon County: 157.52 index157.52DeKalb CountyDeKalb County: 157.47 index157.47St. Clair CountySt. Clair County: 156.57 index156.57Vermilion CountyVermilion County: 154.12 index154.12McHenry CountyMcHenry County: 153.71 index153.71Boone CountyBoone County: 149.91 index149.91Stephenson CountyStephenson County: 144.19 index144.19Winnebago CountyWinnebago County: 143.61 index143.61
index. Source: FHFA. Retrieved 2026-10-10.

Full ranking

RankCounties2018
index		Change on 2017
1Adams County226.16+2.99
2Fayette County224.75-3.96
3Henry County217.18+2.29
4Fulton County215.13-1.57
5Ford County213.27+6.19
6Christian County212.68+7.62
7Rock Island County212.04+2.32
8Franklin County211.12+2.02
9Douglas County206.52+3.17
10Tazewell County205.6-1.3
11Clinton County205.25+4.49
12Macoupin County204.46+2.17
13DuPage County203.86+4.95
14Woodford County201.38-1.67
15Cook County197.88+4.77
16Monroe County197.15+7.34
17Knox County196.8+7.31
18Grundy County194.53+9.34
19Piatt County190.66+0.63
20Marion County190.15+9.43
21McDonough County188.7-10
22Williamson County188.42+2.29
23Jo Daviess County186.94+1.1
24Madison County186.38+5.31
25Whiteside County185.16+6.68
26Champaign County182.78+4
27Livingston County181.35-1.67
28Lee County181.15+4.16
29LaSalle County180.11+6.17
30Montgomery County178.83+0.67
31McLean County178.6-0.31
32De Witt County178.24-2.25
33Logan County177.98+1.29
34Will County177.42+6.95
35Jersey County176.55+2.68
36Kankakee County175.83+6.25
37Peoria County173.93-2.2
38Morgan County173.57+4.34
39Jackson County171.61+7.79
40Bureau County170.32-3.22
41Kane County170.08+5.8
42Ogle County170.06+4.42
43Kendall County169.7+8.29
44Coles County168.14+0.07
45Jefferson County167.15-1.78
46Sangamon County165.45+1.29
47Lake County163.08+2.08
48Macon County157.52-0.38
49DeKalb County157.47+5.2
50St. Clair County156.57+2.05
51Vermilion County154.12-2.63
52McHenry County153.71+6.68
53Boone County149.91+6
54Stephenson County144.19+1.91
55Winnebago County143.61+6.24

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 Illinois 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?

Adams County, with 226.16 index in 2018, according to the Federal Housing Finance Agency.

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

Winnebago County, with 143.61 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 Illinois: more rankings