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

County house price index, 1990 = 100 in Adams County was 335.89 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-17001`
- 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/adams-county-illinois
- CSV: https://invokely.ai/download/county-house-price-index-1990/adams-county-illinois.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-17001

| Period | index |
|---|---:|
| 2025 | 335.89 |
| 2024 | 310.86 |
| 2023 | 302.33 |
| 2022 | 285.22 |
| 2021 | 251.27 |
| 2020 | 235.55 |
| 2019 | 229.63 |
| 2018 | 226.16 |
| 2017 | 223.17 |
| 2016 | 218.64 |
| 2015 | 216.55 |
| 2014 | 209.51 |
| 2013 | 203.55 |
| 2012 | 201.64 |
| 2011 | 198.65 |
| 2010 | 198.07 |
| 2009 | 194.54 |
| 2008 | 192.13 |
| 2007 | 191.53 |
| 2006 | 187.19 |
| 2005 | 176.64 |
| 2004 | 166.34 |
| 2003 | 160.49 |
| 2002 | 158.38 |
| 2001 | 155.93 |
| 2000 | 150.39 |
| 1999 | 148.21 |
| 1998 | 146.43 |
| 1997 | 145.06 |
| 1996 | 142.97 |
| 1995 | 134.59 |
| 1994 | 122 |
| 1993 | 113.11 |
| 1992 | 107.47 |
| 1991 | 101.85 |
| 1990 | 100 |
| 1989 | 96.14 |
| 1988 | 85.56 |
| 1987 | 84.83 |
| 1986 | 88.95 |
| 1985 | 89.98 |
| 1984 | 107.63 |
| 1980 | 90.41 |
| 1979 | 94.72 |