# County house price index, 1990 = 100 in DuPage County

County house price index, 1990 = 100 in DuPage County was 307.46 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-17043`
- Unit: index
- Definition: Annual FHFA all-transactions index of single-family house prices in US counties, with 1990 equal to 100.
- Note: 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.
- Source: Federal Housing Finance Agency, 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
- License: Public domain (US government work); citation requested
- Citation: 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.
- Web page: https://invokely.ai/en/county-house-price-index-1990/dupage-county-illinois
- CSV: https://invokely.ai/download/county-house-price-index-1990/dupage-county-illinois.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-17043

| Period | index |
|---|---:|
| 2025 | 307.46 |
| 2024 | 289.4 |
| 2023 | 268.61 |
| 2022 | 248.22 |
| 2021 | 223.56 |
| 2020 | 210.07 |
| 2019 | 208.22 |
| 2018 | 203.86 |
| 2017 | 198.91 |
| 2016 | 192.5 |
| 2015 | 187.38 |
| 2014 | 182.06 |
| 2013 | 172.22 |
| 2012 | 168.85 |
| 2011 | 173.17 |
| 2010 | 183.36 |
| 2009 | 197.26 |
| 2008 | 216.61 |
| 2007 | 224.06 |
| 2006 | 222.56 |
| 2005 | 208.34 |
| 2004 | 187.24 |
| 2003 | 171.54 |
| 2002 | 163.99 |
| 2001 | 153.4 |
| 2000 | 144.31 |
| 1999 | 132.04 |
| 1998 | 125.95 |
| 1997 | 123.01 |
| 1996 | 119.09 |
| 1995 | 116.33 |
| 1994 | 111.33 |
| 1993 | 107.41 |
| 1992 | 104.86 |
| 1991 | 102.38 |
| 1990 | 100 |
| 1989 | 96.73 |
| 1988 | 90.24 |
| 1987 | 80.39 |
| 1986 | 73.34 |
| 1985 | 69.03 |
| 1984 | 65.74 |
| 1983 | 62.25 |
| 1982 | 58.73 |
| 1981 | 61.52 |
| 1980 | 56.07 |
| 1979 | 55.92 |
| 1978 | 53.69 |
| 1977 | 46.55 |
| 1976 | 40.54 |
| 1975 | 36.71 |