RentMark

Methodology & data sources

Transparency is the core of our trustworthiness: this page documents exactly where every figure comes from, what fiscal year it covers, and how each derived value is computed.

Primary data source

All Fair Market Rent figures are HUD's published FY2026 Fair Market Rents (40th percentile), taken from the revised final county/area data file (FY26_FMRs_revised.xlsx) on HUD USER, the research arm of the U.S. Department of Housing and Urban Development. HUD data is a U.S. Government work in the public domain. We captured this snapshot in June 2026.

SourceRefresh cadenceLicense
HUD USER — FY2026 Fair Market Rents (40th percentile, revised final) annual Public domain (U.S. Government work)
HUD USER Fair Market Rents API annual Public domain (U.S. Government work)

What Fair Market Rent is

FMR is HUD's estimate of the 40th-percentile gross rent (contract rent plus tenant-paid utilities) for a modest, standard-quality unit in an FMR area. HUD derives it from American Community Survey rent data, a recent-mover adjustment and a current-year inflation factor, and publishes a value per metro and non-metro county for each bedroom size (0/studio, 1, 2, 3, 4). It is not the market median and not a rent cap. See what is FMR.

How we structure the data

Derived calculations (transparent)

The rent-vs-FMR calculator

The calculator compares your rent to the area FMR for your bedroom size (rent − FMR, and the percentage). The optional voucher illustration assumes a tenant contribution of about 30% of monthly income and a payment standard equal to the FMR. These are rounded rules of thumb; actual Housing Choice Voucher subsidies use adjusted income, utility allowances and the local PHA's own payment standard (commonly 90–110% of FMR). The tool runs entirely in your browser and stores nothing.

Limitations

FMR is an annual estimate that can lag rising or falling local markets, and it reflects standard rather than new-build units, so advertised market rents are often higher. We omit any area or bedroom cell that HUD does not report rather than estimate it. Figures are a June 2026 snapshot — always verify the current value on huduser.gov (or via the HUD FMR API) before relying on it. See our disclaimer.

Last updated: 2026-06-20