Guide
FHFA HPI vs Zillow Zestimate: What's the Difference?
Compare a public regional index with a property-oriented automated valuation estimate.
Last updated 2026-06-18
Regional index vs property estimate
FHFA HPI® data is an index that measures broad price movement for a geography. It is not trying to price one current home.
A Zestimate-style tool is an automated valuation estimate that attempts to estimate a specific property's value using many inputs. This site does not create that type of valuation.
When each is useful
Use the FHFA-based calculator when you want a consistent historical appreciation estimate from public index data.
Use property-specific valuations, comparable sales, lender reviews, or appraisals when the decision depends on the likely market value of one home.
Look up your ZIP3 region
Enter a ZIP code or the first three digits to open the matching regional trend page.