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

County house price index, 1990 = 100 in Washington County was 299.13 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-24043`
- 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/washington-county-maryland
- CSV: https://invokely.ai/download/county-house-price-index-1990/washington-county-maryland.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-24043

| Period | index |
|---|---:|
| 2025 | 299.13 |
| 2024 | 289.63 |
| 2023 | 269.8 |
| 2022 | 250.7 |
| 2021 | 220.95 |
| 2020 | 197.65 |
| 2019 | 191.06 |
| 2018 | 187.32 |
| 2017 | 178.34 |
| 2016 | 171.9 |
| 2015 | 167.78 |
| 2014 | 162.99 |
| 2013 | 159.67 |
| 2012 | 156.33 |
| 2011 | 158.54 |
| 2010 | 170.85 |
| 2009 | 187.28 |
| 2008 | 218.32 |
| 2007 | 235.89 |
| 2006 | 237.95 |
| 2005 | 213.03 |
| 2004 | 171.96 |
| 2003 | 146.44 |
| 2002 | 138.1 |
| 2001 | 128.68 |
| 2000 | 122.22 |
| 1999 | 117.58 |
| 1998 | 114.84 |
| 1997 | 113.37 |
| 1996 | 110.53 |
| 1995 | 108.13 |
| 1994 | 105.45 |
| 1993 | 105.42 |
| 1992 | 103.57 |
| 1991 | 100.97 |
| 1990 | 100 |
| 1989 | 91.91 |
| 1988 | 81.74 |
| 1987 | 74.26 |
| 1986 | 67.42 |
| 1985 | 62.88 |
| 1984 | 61.34 |
| 1983 | 56.3 |
| 1982 | 54.72 |
| 1981 | 52.43 |
| 1980 | 51.41 |
| 1979 | 49.92 |
| 1978 | 41.41 |
| 1977 | 39.58 |
| 1976 | 41.54 |
| 1975 | 31.55 |