Does the Census publish property tax rates by county?

Not directly. It publishes median real estate taxes actually paid by owner-occupied households (table B25103), which is a useful proxy, but the official statutory rate comes from your state's Department of Revenue or the county assessor.

Why compare counties instead of just cities?

Counties often control property tax rates, school district funding, and infrastructure spending — decisions that can vary significantly even between cities within the same metro area.

Is county-level Census data more reliable than ZIP-level data?

Generally yes. Counties pool a larger survey sample than individual ZIP codes, which narrows the margin of error on the published estimates.

Comparing Counties: Taxes, Population, and Growth

Most people compare places at the city or state level and skip counties entirely, which is a little strange given how much counties actually control. Property tax rates, school district boundaries and funding, and a lot of local infrastructure spending happen at the county level in most states — not the city, and not the state.

Comparing counties directly, rather than defaulting to city or state comparisons, often gets you closer to the numbers that actually affect your monthly budget.

What the Census publishes at the county level

County-level American Community Survey data covers the same core tables as city and ZIP-level data — population (B01003), median household income (B19013), median home value (B25077), median gross rent (B25064), and educational attainment (B15003) — but with smaller margins of error than ZIP-level figures, since counties pool a larger sample of survey responses.

Population growth: the county-level headline number

County population change is one of the more reliable Census figures for spotting where growth (or decline) is actually concentrated, since county boundaries are stable over time in a way city annexation and ZIP boundary redraws aren't. Comparing a county's current population estimate to its figure from five years prior gives a cleaner growth trend than trying to stitch together city-level data across boundary changes.

Fast-growing counties: often exurban counties adjacent to major metros, absorbing overflow demand.
Stable counties: frequently well-established suburban counties with limited new housing supply.
Declining counties: concentrated in parts of the rural Midwest, Great Plains, and Appalachia.

Income, housing cost, and population for any two counties in one view.

Compare Two Counties Side by Side

Property taxes: the one number the Census doesn't publish

This is worth being direct about: the Census Bureau does not publish current property tax rates by county. What it does publish, in table B25103, is the median real estate taxes actually paid by owner-occupied households — a useful proxy, but not the same as the statutory mill rate a county assessor would quote you. For the actual current rate, your state's Department of Revenue or the county assessor's office is the authoritative source, and most publish their rate schedules online for free.

Why county comparisons matter more than they get credit for

Two cities can share a metro area and a very similar cost of living, yet sit in different counties with meaningfully different tax burdens and school funding structures. If you're comparing suburbs around the same metro, checking which county each one falls into — and comparing county-level tax and growth data — often reveals a bigger practical difference than the city-level numbers alone would suggest.