Data sources
Last updated October 28, 2026
Every local figure on YieldBadger comes from public data. Each one is shown with its source and date, and updated automatically when the source publishes new data.
HUD Fair Market Rents and Small Area Fair Market Rents
From: U.S. Department of Housing and Urban Development (HUD User). Source
Used for: Rent by bedroom count for every county, and by ZIP code in metro areas where HUD prices by ZIP. The 40th-percentile gross rent for recent movers.
Updates: Yearly (each fiscal year starts October 1)
American Community Survey 5-year estimates
From: U.S. Census Bureau. Source
Used for: Median gross rent by bedroom count for ZIP Code Tabulation Areas (table B25031), and median real estate taxes paid and home values by county (B25103, B25077) for the property tax estimate.
Updates: Yearly (each December)
30-Year and 15-Year Fixed Rate Mortgage Averages
From: Freddie Mac Primary Mortgage Market Survey®, retrieved from FRED, Federal Reserve Bank of St. Louis. Source
Used for: The current mortgage rate used to pre-fill calculators.
Updates: Weekly (Thursdays)
USPS ZIP Code Crosswalk
From: HUD User. Source
Used for: Which counties and cities each ZIP code belongs to.
Updates: Quarterly
Gazetteer files and Geocoder
From: U.S. Census Bureau. Source
Used for: County names and ZIP area locations; the Geocoder turns an address or your location into a ZIP code.
Updates: Yearly / on request
Notices
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Mortgage rates: Freddie Mac, 30-Year and 15-Year Fixed Rate Mortgage Averages in the United States [MORTGAGE30US, MORTGAGE15US], retrieved from FRED, Federal Reserve Bank of St. Louis. Provided “as is” by Freddie Mac®.
YieldBadger is not affiliated with or endorsed by HUD, the Census Bureau, Freddie Mac or the Federal Reserve Bank of St. Louis.