These data include information about federal housing supports in the Bay Area that provide subsidies to improve housing affordability for residents in the region. This includes funding distributed through various programs from the US Department of Housing and Urban Development (HUD), the number of people and households served by HUD programs, and the count and total dollar value of first-lien purchase mortgages for single-family owner-occupied homes backed by the Federal Housing Administration, as well as the number of units supported by the Low-Income Housing Tax Credit, the US Department of Agriculture’s Rural Rental Housing Loans (Section 515) and Multifamily Housing Loan Guarantees (Section 538), and the National Housing Trust Fund. Data are available at the county, municipality, and zip code levels.

The data here are informed estimates based on past spending and housing unit counts; they may not reflect how actual or future funding is distributed. Beyond a count of total housing units, we do not include data on housing that is not supported by the federal government, such as affordable housing primarily supported by state or local governments.

We also provide companion shapefiles for Bay Area counties, municipalities, and zip codes. Shapefiles use 2020 Census geographies and were downloaded from the US Census Bureau's TIGER/Line Shapefiles.