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

County house price index, 1990 = 100 in Warren County was 275.09 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-34041`
- 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/warren-county-new-jersey
- CSV: https://invokely.ai/download/county-house-price-index-1990/warren-county-new-jersey.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-34041

| Period | index |
|---|---:|
| 2025 | 275.09 |
| 2024 | 257.54 |
| 2023 | 235.14 |
| 2022 | 212.68 |
| 2021 | 187.02 |
| 2020 | 163.46 |
| 2019 | 155.29 |
| 2018 | 151.33 |
| 2017 | 147.2 |
| 2016 | 144.99 |
| 2015 | 145.59 |
| 2014 | 142.34 |
| 2013 | 138.81 |
| 2012 | 138.21 |
| 2011 | 149.43 |
| 2010 | 159.06 |
| 2009 | 169.69 |
| 2008 | 187.12 |
| 2007 | 197.58 |
| 2006 | 201.89 |
| 2005 | 185.64 |
| 2004 | 163.48 |
| 2003 | 144.83 |
| 2002 | 134.87 |
| 2001 | 123.06 |
| 2000 | 113.29 |
| 1999 | 104.92 |
| 1998 | 101 |
| 1997 | 99.54 |
| 1996 | 98.77 |
| 1995 | 96.96 |
| 1994 | 97.8 |
| 1993 | 95.85 |
| 1992 | 95.34 |
| 1991 | 94.17 |
| 1990 | 100 |
| 1989 | 105.98 |
| 1988 | 109.12 |
| 1987 | 100.23 |
| 1986 | 80.59 |
| 1985 | 67.61 |
| 1984 | 57.29 |
| 1983 | 51.16 |
| 1982 | 51.04 |
| 1981 | 51.12 |
| 1980 | 49.92 |
| 1979 | 40.1 |
| 1978 | 33.41 |
| 1977 | 26.88 |
| 1976 | 26.5 |