Methodology & data sources
County Property Taxes is an independent reference. Every number comes from a public government dataset, listed below, and is rebuilt from the original files each year.
Median effective rates (all counties)
For each of 3,133 counties, states and the nation we use the U.S. Census Bureau's American Community Survey (ACS) 2019-2023 5-year estimates: median real estate taxes paid by owner-occupied households (table B25103) and median value of owner-occupied homes (table B25077). The median effective rate is the first divided by the second. Owner counts come from table B25003, and the median household income of homeowners from table B25119 — the "share of income" figures divide the median tax by that income. The ACS is a survey: estimates for small counties carry wide margins of error, and a few counties with too few responses are left out. Because the ACS asks homeowners what they paid, the rate reflects real bills after typical exemptions and assessment practices — which is what makes it comparable between states.
Texas local rates
The Texas Comptroller of Public Accounts' 2025 tax rates and levies files list the adopted rate of every county, city, school district and special district (utility, water, emergency services, hospital and college districts), per $100 of taxable value. Taxing units are assigned to the county of their appraisal district. The calculator adds the county rate to the chosen school district, city and one special district, and removes the school homestead exemption of $140,000 (plus $60,000 for owners 65+ or disabled) from the school district's taxable value, as approved by voters in November 2025. Optional local exemptions offered by some counties, cities and districts are not applied.
Year-over-year changes compare the 2025 rates with the Comptroller's 2024 files, matched by taxing unit ID.
Worked examples and bill tables
Each county page works through a home at the county's median value using a typical combination of local rates: in Texas, the county, its most populous school district and city (by ACS population of school districts and places) and the county-wide hospital district if there is one; in North Carolina, the county and its most populous municipality; in Florida, the county-average millage; elsewhere, the median effective rate. The calculator starts from the same combination, and you can change every choice.
North Carolina local rates
The North Carolina Department of Revenue's 2025–2026 table gives each county's rate, each municipality's rate, their combined rate, and effective rates adjusted by the county's sales assessment ratio. The calculator applies the nominal combined rate to the assessed value you enter. Changes compare with the 2024–2025 table.
Florida millage
The Florida Department of Revenue's 2025 millage and taxes levied report (data extract November 2025) breaks each county's millage into county government, school board, special districts and levies charged in only part of the county. Partial-county levies are expressed as a county-wide equivalent, so the total is an average for the county. The calculator applies school millage after the first $25,000 homestead exemption and all other millage after both exemptions (the second is up to $25,722 for 2025, on value between $50,000 and $75,000).
Official county offices
The "look up, pay or appeal" links on county pages come from state directories: the Texas Comptroller's county directory (appraisal district, tax assessor-collector and the truth-in-taxation site), and the Florida Department of Revenue's list of county property appraisers, tax collectors and value adjustment boards. North Carolina has no statewide list with web addresses, so each county's tax office page was located on its official county government website.
Maps and photos
County maps are drawn from the U.S. Census Bureau's cartographic boundary files (as packaged in the open-source us-atlas project) and shaded with the same median effective rates. County photos come from Wikimedia Commons — the image linked from each county's Wikidata entry — and are used only under free licenses (public domain, CC0, CC BY or CC BY-SA). Each photo credits its author and license beneath it.
Limits
- Estimates are for planning. Your bill depends on your assessed value, the exemptions you claim, and the taxing units at your exact address.
- ACS medians describe homeowners as a whole; recent buyers often pay more than the median because their homes were assessed at today's prices.
- Rates change every year. Each page states the year of the data it uses.
Corrections
Found a figure that looks wrong? The original files are linked on every page; please compare with them and email hi@countypropertytaxes.com with the county and the figure.