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

County house price index, 1990 = 100 in Yellowstone County was 507.01 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-30111`
- 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/yellowstone-county-montana
- CSV: https://invokely.ai/download/county-house-price-index-1990/yellowstone-county-montana.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-30111

| Period | index |
|---|---:|
| 2025 | 507.01 |
| 2024 | 501.07 |
| 2023 | 488.59 |
| 2022 | 464.54 |
| 2021 | 390.25 |
| 2020 | 343.29 |
| 2019 | 330.54 |
| 2018 | 319.69 |
| 2017 | 312.59 |
| 2016 | 301.64 |
| 2015 | 294.65 |
| 2014 | 283.67 |
| 2013 | 272.3 |
| 2012 | 260.74 |
| 2011 | 255.42 |
| 2010 | 258.29 |
| 2009 | 261.2 |
| 2008 | 263.9 |
| 2007 | 254.99 |
| 2006 | 241.4 |
| 2005 | 225.77 |
| 2004 | 204 |
| 2003 | 187.77 |
| 2002 | 178.62 |
| 2001 | 169.26 |
| 2000 | 162.3 |
| 1999 | 155.62 |
| 1998 | 150.77 |
| 1997 | 147.94 |
| 1996 | 143.12 |
| 1995 | 138.34 |
| 1994 | 131.25 |
| 1993 | 124.41 |
| 1992 | 114.29 |
| 1991 | 105.15 |
| 1990 | 100 |
| 1989 | 95.06 |
| 1988 | 93.62 |
| 1987 | 91.92 |
| 1986 | 104.4 |
| 1985 | 106.67 |
| 1984 | 105.2 |
| 1983 | 99.48 |
| 1982 | 94.01 |
| 1981 | 94.52 |
| 1980 | 86.29 |
| 1979 | 87.11 |
| 1978 | 77.39 |
| 1977 | 65.49 |
| 1976 | 57.39 |
| 1975 | 53.09 |