Coverage · Ohio

Union County, OH property data

Parceled covers 33,121 parcels in Union County, OH, with zoning, historic designations, building codes and hail history available through one API and MCP server.

Updated · Parceled

Parcels
33,121
County FIPS
39159
Snapshot
October 30, 2026

What property data is available for Union County?

DatasetUnion County
Parcel boundaries33,121 parcels
Tax assessor recordsNot yet
Owner name and mailing addressNot yet
Market or assessed valueNot yet
Year builtNot yet
Last sale dateNot yet
Building permitsNot yet
Roofing permitsNot yet
Zoning7 zoning jurisdictions
Buildable-area screensYes
Historic designations10
Adopted building codes1 jurisdiction
Hail history (radar)Yes, every county in the contiguous US

How do I query Union County property data?

Bulk-search every parcel in the county with `search_properties` using `state: "OH"` and `county: "159"` (the county FIPS code 39159), or look up one address with `search_parcels`. Check any single property for free with `check_availability`.

{
  "name": "count_properties",
  "arguments": { "state": "OH", "county": "159" }
}

Frequently asked questions

How do I find who owns a property in Union County?

Search the address on the Union County assessor's website, or query Parceled's `search_parcels` for owner name and mailing address. See how to find a property owner by address.

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