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

County house price index, 1990 = 100 in Nantucket County was 493 index in 2021. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-25019`
- 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/nantucket-county-massachusetts
- CSV: https://invokely.ai/download/county-house-price-index-1990/nantucket-county-massachusetts.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-25019

| Period | index |
|---|---:|
| 2021 | 493 |
| 2020 | 472.02 |
| 2019 | 500.27 |
| 2018 | 420.89 |
| 2017 | 419.52 |
| 2016 | 427.27 |
| 2015 | 392.62 |
| 2014 | 338.57 |
| 2013 | 321.92 |
| 2012 | 317.88 |
| 2011 | 318.73 |
| 2010 | 328.96 |
| 2009 | 364.44 |
| 2008 | 390.8 |
| 2007 | 435.64 |
| 2006 | 403.45 |
| 2005 | 360.13 |
| 2004 | 278.73 |
| 2003 | 255.72 |
| 2002 | 249.03 |
| 2001 | 240.24 |
| 2000 | 224.16 |
| 1999 | 161.24 |
| 1998 | 140.09 |
| 1997 | 124.86 |
| 1996 | 113.66 |
| 1995 | 106.19 |
| 1994 | 98.91 |
| 1993 | 93.99 |
| 1992 | 94.93 |
| 1991 | 93.24 |
| 1990 | 100 |
| 1989 | 109.04 |
| 1988 | 108.12 |
| 1987 | 93.4 |
| 1986 | 87.56 |