Sources you can check
Follow the original source for every dataset. The imported snapshots below are used by the calculators; dates identify their observation or program period.
U.S. Census Bureau.
ACS 2024 five-year estimates for states, counties, and places: B25077 home value, B25103 real-estate taxes paid, B25064 gross rent, B19013 household income, and B01003 population. ACS summary level 155 supplies current place-to-county relationships and each county part’s population.
U.S. Department of Housing and Urban Development.
- FY 2027 Fair Market Rents and Small Area FMRs — effective October 1, 2026
- FY 2026 household-size income limits — published schedule and methodology
Multiple HUD areas inside a county retain their separate records. Program eligibility and housing-agency payment standards must be checked with the agency.
Federal Housing Finance Agency.
- House Price Index datasets — state and 410 metropolitan/division quarterly all-transactions indexes through 2026 Q2, and annual developmental county indexes through 2025
- 2023 metropolitan boundary transition — current market definitions, introduced in the 2025 Q1 release
- HPI methodology and limitations
Mortgage program AMI.
- Freddie Mac 2026 county AMI spreadsheet
- Home Possible property and income lookup
- Fannie Mae 2026 AMI notice
- HomeReady AMI lookup
The site’s mortgage benchmark is attributed to the published Freddie Mac file. The official property lookup controls a specific HomeReady or Home Possible loan.
State tax and settlement guidance.
Each state page cites its applicable tax source. Our adjustable service-fee allowances are explained alongside the results.