SearchSystems Editorial

Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. Every office link was opened and checked against the office's own site between September 23, 2026 and October 4, 2026.

About this guide

Union County, Ohio, has about 72,000 residents (2024 Census Bureau estimate). The title to a parcel in Union County is in the deed records of the County Recorder and its taxable value is set by the County Auditor; what is built on it is a matter for the city or the county. This guide says who keeps each record and where the page for each office is.

This guide covers deeds, assessed values, directory links, city permits, evictions and court cases, records requests and common questions.

Related guides: Union County public records, Union County arrest records, Union County warrants, Union County inmate search, Union County police reports, Ohio arrest records and Ohio inmate search.

Deeds, Mortgages and Liens in Union County

Deeds, mortgages, liens and easements that affect title to land in Union County are recorded by the County Recorder, which indexes them by name and sells copies.

SearchSystems opened and checked the County Recorder's page at unioncountyohio.gov/Recorder (page title: Union County, Ohio | Recorder), phone 937-645-3032, 911 Location 233 West Sixth Street Marysville, OH 43040, Monday through Friday 7:30am to 4:00pm, which answered when SearchSystems opened it on September 23, 2026.

Assessed Values and the Tax Roll in Union County

The County Auditor sets the value each parcel in Union County is taxed on and keeps the parcel maps. Ohio counties reappraise every six years with an update at the three-year mark, and tax 35 percent of the appraised value.

SearchSystems opened and checked the County Auditor's page at unioncountyohio.gov/property-search-tools (page title: Union County, Ohio | Property Search Tools), phone 937-645-3003, 911 Location 233 West 6th Street 2nd Floor Marysville, OH 43040, which answered when SearchSystems opened it on September 23, 2026.

More Official Property and Land Records Pages for Union County

The SearchSystems directory, online since 1997, lists the official pages for Union County and Ohio. These property pages from its Union County listing were opened again on October 2, 2026 and each one still answers:

Permits and City Records in the Cities of Union County

Building permits, zoning and code cases inside a city are the city's own records. The cities in Union County with a SearchSystems guide to their offices, with the city page SearchSystems verified:

Evictions and Court Cases About Land in Union County

Court cases about land from Union County, evictions among them, are filed in the Municipal and County Courts or the Union County Court of Common Pleas.

Asking a County Office for a Record

Under the Ohio Public Records Act a county office must answer a request promptly, within a reasonable period of time, and it may charge the actual cost of copying.

Frequently Asked Questions

Who records deeds in Union County?

The County Recorder, at unioncountyohio.gov/Recorder, phone 937-645-3032. Deeds, mortgages and liens on land in Union County are filed there, and the County Auditor (unioncountyohio.gov/property-search-tools) has the assessment records.

Who sets the assessed value of a property in Union County?

The County Auditor, whose page SearchSystems verified is at unioncountyohio.gov/property-search-tools.

Where are evictions from Union County filed?

In the Municipal and County Courts. The file is public unless the court seals it.

How is property assessed in Ohio?

Ohio counties reappraise every six years with an update at the three-year mark, and tax 35 percent of the appraised value.

Is this the official Union County website?

No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.