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

County house price index, 1990 = 100 in Nassau County was 418.23 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-36059`
- 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/nassau-county-new-york
- CSV: https://invokely.ai/download/county-house-price-index-1990/nassau-county-new-york.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-36059

| Period | index |
|---|---:|
| 2025 | 418.23 |
| 2024 | 390.98 |
| 2023 | 364.11 |
| 2022 | 344.63 |
| 2021 | 309.62 |
| 2020 | 289.33 |
| 2019 | 281.38 |
| 2018 | 271.17 |
| 2017 | 254.31 |
| 2016 | 239.82 |
| 2015 | 230.41 |
| 2014 | 221.51 |
| 2013 | 211.95 |
| 2012 | 209.89 |
| 2011 | 215.18 |
| 2010 | 221.23 |
| 2009 | 228.51 |
| 2008 | 246.59 |
| 2007 | 259.72 |
| 2006 | 262.48 |
| 2005 | 244.72 |
| 2004 | 210.83 |
| 2003 | 185.47 |
| 2002 | 169.16 |
| 2001 | 152.7 |
| 2000 | 139.43 |
| 1999 | 119.05 |
| 1998 | 109.23 |
| 1997 | 104.11 |
| 1996 | 101.36 |
| 1995 | 99.21 |
| 1994 | 98.89 |
| 1993 | 97.6 |
| 1992 | 97.18 |
| 1991 | 96.13 |
| 1990 | 100 |
| 1989 | 104.34 |
| 1988 | 106.07 |
| 1987 | 97.37 |
| 1986 | 84.64 |
| 1985 | 69.56 |
| 1984 | 59.02 |
| 1983 | 46.75 |
| 1982 | 41.11 |
| 1981 | 34.94 |
| 1980 | 31.07 |
| 1979 | 26.43 |
| 1978 | 24.74 |
| 1977 | 23.47 |
| 1976 | 22.72 |
| 1975 | 23.36 |