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

County house price index, 1990 = 100 in Bay County was 320.8 index in 2025. Source: Federal Housing Finance Agency.

- Indicator id: `house_price_index_us_county_annual_1990`
- Place id: `us-county-26017`
- 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/bay-county-michigan
- CSV: https://invokely.ai/download/county-house-price-index-1990/bay-county-michigan.csv
- API: https://invokely.ai/api/v1/series?indicator=house_price_index_us_county_annual_1990&place=us-county-26017

| Period | index |
|---|---:|
| 2025 | 320.8 |
| 2024 | 305.24 |
| 2023 | 280.5 |
| 2022 | 259.08 |
| 2021 | 226.2 |
| 2020 | 200.81 |
| 2019 | 192.96 |
| 2018 | 184.95 |
| 2017 | 176.4 |
| 2016 | 170.44 |
| 2015 | 169.42 |
| 2014 | 163.78 |
| 2013 | 160.25 |
| 2012 | 161.92 |
| 2011 | 164.29 |
| 2010 | 166.64 |
| 2009 | 177.06 |
| 2008 | 189.1 |
| 2007 | 201.64 |
| 2006 | 206.75 |
| 2005 | 208.55 |
| 2004 | 204.01 |
| 2003 | 198.06 |
| 2002 | 193.99 |
| 2001 | 188.93 |
| 2000 | 179.91 |
| 1999 | 168.82 |
| 1998 | 159.69 |
| 1997 | 153.23 |
| 1996 | 142.82 |
| 1995 | 132.63 |
| 1994 | 122.27 |
| 1993 | 112.81 |
| 1992 | 109.78 |
| 1991 | 104.67 |
| 1990 | 100 |
| 1989 | 93.77 |
| 1988 | 88.5 |
| 1987 | 83.17 |
| 1986 | 81.57 |
| 1985 | 80.68 |
| 1984 | 78.88 |
| 1983 | 85.25 |
| 1982 | 77.23 |
| 1981 | 93.16 |
| 1980 | 84.63 |
| 1979 | 85.49 |
| 1978 | 71.17 |