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

County house price index, 1990 = 100 in Northumberland County was 316.16 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-42097`
- 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/northumberland-county-pennsylvania
- CSV: https://invokely.ai/download/county-house-price-index-1990/northumberland-county-pennsylvania.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-42097

| Period | index |
|---|---:|
| 2025 | 316.16 |
| 2024 | 300.12 |
| 2023 | 278.57 |
| 2022 | 257.68 |
| 2021 | 230.69 |
| 2020 | 216.58 |
| 2019 | 212.5 |
| 2018 | 205.2 |
| 2017 | 201.05 |
| 2016 | 197.35 |
| 2015 | 194.37 |
| 2014 | 193.17 |
| 2013 | 189.88 |
| 2012 | 188.78 |
| 2011 | 188.42 |
| 2010 | 187.39 |
| 2009 | 187.99 |
| 2008 | 189.55 |
| 2007 | 184.03 |
| 2006 | 171.89 |
| 2005 | 164.46 |
| 2004 | 157.03 |
| 2003 | 148.72 |
| 2002 | 147.84 |
| 2001 | 144.5 |
| 2000 | 133.64 |
| 1999 | 134.95 |
| 1998 | 138.49 |
| 1997 | 135 |
| 1996 | 131.12 |
| 1995 | 128.08 |
| 1994 | 122.72 |
| 1993 | 119.91 |
| 1992 | 114.7 |
| 1991 | 108.35 |
| 1990 | 100 |
| 1989 | 99.84 |
| 1988 | 99.98 |
| 1987 | 75.53 |
| 1986 | 77.04 |