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

County house price index, 1990 = 100 in Ada County was 603.37 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-16001`
- 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/ada-county-idaho
- CSV: https://invokely.ai/download/county-house-price-index-1990/ada-county-idaho.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-16001

| Period | index |
|---|---:|
| 2025 | 603.37 |
| 2024 | 587.46 |
| 2023 | 564.12 |
| 2022 | 584.5 |
| 2021 | 506.93 |
| 2020 | 407.41 |
| 2019 | 373.64 |
| 2018 | 332.29 |
| 2017 | 292.08 |
| 2016 | 261.63 |
| 2015 | 239.58 |
| 2014 | 224.75 |
| 2013 | 202.53 |
| 2012 | 180.75 |
| 2011 | 172.36 |
| 2010 | 195.8 |
| 2009 | 227.19 |
| 2008 | 260.62 |
| 2007 | 274.74 |
| 2006 | 265.21 |
| 2005 | 212.92 |
| 2004 | 183.33 |
| 2003 | 173.23 |
| 2002 | 169.17 |
| 2001 | 163.09 |
| 2000 | 155.08 |
| 1999 | 149.14 |
| 1998 | 145.35 |
| 1997 | 141.8 |
| 1996 | 138.98 |
| 1995 | 136.82 |
| 1994 | 129.36 |
| 1993 | 120.98 |
| 1992 | 110.21 |
| 1991 | 104.71 |
| 1990 | 100 |
| 1989 | 93.42 |
| 1988 | 88.54 |
| 1987 | 88.23 |
| 1986 | 88.8 |
| 1985 | 88.83 |
| 1984 | 87.84 |
| 1983 | 86.7 |
| 1982 | 85 |
| 1981 | 84.67 |
| 1980 | 78.51 |
| 1979 | 73 |
| 1978 | 65.63 |
| 1977 | 54.72 |
| 1976 | 48.5 |
| 1975 | 43.68 |