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

County house price index, 1990 = 100 in Delaware County was 297.17 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-42045`
- 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/delaware-county-pennsylvania
- CSV: https://invokely.ai/download/county-house-price-index-1990/delaware-county-pennsylvania.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-42045

| Period | index |
|---|---:|
| 2025 | 297.17 |
| 2024 | 283.98 |
| 2023 | 268.02 |
| 2022 | 243.72 |
| 2021 | 215.12 |
| 2020 | 194.33 |
| 2019 | 187.76 |
| 2018 | 179.39 |
| 2017 | 171.49 |
| 2016 | 166.23 |
| 2015 | 161.74 |
| 2014 | 159.51 |
| 2013 | 157.71 |
| 2012 | 157.49 |
| 2011 | 162.4 |
| 2010 | 169.68 |
| 2009 | 174.14 |
| 2008 | 183.06 |
| 2007 | 185.97 |
| 2006 | 181.67 |
| 2005 | 168.04 |
| 2004 | 148.57 |
| 2003 | 131.99 |
| 2002 | 124.75 |
| 2001 | 116.37 |
| 2000 | 109.76 |
| 1999 | 105.2 |
| 1998 | 102.49 |
| 1997 | 100.65 |
| 1996 | 99.98 |
| 1995 | 99.6 |
| 1994 | 100.1 |
| 1993 | 100.31 |
| 1992 | 100.53 |
| 1991 | 100.28 |
| 1990 | 100 |
| 1989 | 97.34 |
| 1988 | 90.79 |
| 1987 | 76.58 |
| 1986 | 66.84 |
| 1985 | 61.28 |
| 1984 | 56.95 |
| 1983 | 51.74 |
| 1982 | 48.24 |
| 1981 | 46.97 |
| 1980 | 43.25 |
| 1979 | 39.54 |
| 1978 | 35.33 |
| 1977 | 32.48 |
| 1976 | 30.04 |
| 1975 | 31.93 |