Property tax · Ohio
Property tax in Ohio
Property tax (County assessors) data for ZIP codes in Ohio. Pick a ZIP below to dive into the property tax summary.
Last verified 2026-05-13 · methodology
What lands here
Pages show the county millage rate, assessment methodology, homestead and senior exemptions, and a link to the assessor's portal for address-specific searches.
Source & refresh
County assessors. Refreshed annual reassessment per county. Primary source →
Ohio top concern
Lead service lines, Great Lakes erosion
Ohio has heavy LCRR obligations in Cleveland, Cincinnati, Columbus, Toledo. Lake Erie shoreline erosion expands FEMA AE zones in some lakefront counties. Tornado exposure on the Indiana/Ohio border.
See Ohio state page for the full state-level rollup across all 12 dimensions.
Read more on property tax
Editorial deep-dives explaining the source data, its limits, and how to read it.
Lead and Copper Rule 2024 — the federal lead-pipe inventory mandate
The 2024 Lead and Copper Rule Revisions (LCRR) require every US community water system to inventory and report lead service lines. Plain-English guide.
Property tax millage — what 'mill' means and how your bill is computed
Plain-English guide to property tax millage rates, assessment ratios, and homestead exemptions. How county assessors compute your annual property tax bill.
School district boundaries — how to confirm yours and why it matters
How school district boundaries work, where to find them, and why the same street can split between two districts.
Deed records — what they show and what they don't
Plain-English guide to county deed records: what gets filed, how to look up a property's history, and why zipradar aggregates only counts (never owner names).