Where our numbers come from

Every statistic on this site is computed from government public records. We'd rather show you an honest range with named sources than an impressive-looking number we can't defend.

Sources

• Sold prices: Sold prices are from public Affidavits of Property Value recorded with the Maricopa County Recorder (A.R.S. § 11-1133).
• Property characteristics & assessed values: Property characteristics and assessed values are from the Maricopa County Assessor.
• Area statistics: U.S. Census Bureau American Community Survey (5-year estimates) for income, owner-occupancy, and housing-stock context.
• Price trends: FHFA House Price Index — published annually at ZIP level, which is why our trend charts show annual points, never invented monthly curves.

Known limits — read this

• Sales recorded with an exemption under A.R.S. § 11-1134 have no public affidavit and are not included; sold data is therefore not a complete census of sales.
• Our value estimates are data estimates, not appraisals. Public records can't see your home's condition or upgrades, which often move a final price by tens of thousands of dollars. That is why we show a range and recommend a licensed agent's comparative market analysis for a precise number.
• An assessed value is a tax figure, not a market value. We anchor every value claim to recorded sold prices, never to the assessor's valuation.
• We do not publish days-on-market: it requires listing data we deliberately don't use. We publish recorded-sale metrics instead.

Update cadence & automation

Statistics are recomputed monthly when county records refresh; every data page carries a visible last-updated date that changes only when the underlying data actually changed. Statistics are computed automatically from county records; market commentary is written and reviewed by a licensed real-estate professional, identified on each page.