Union County, Ohio

Property Search Tools

ATTENTION: Title Companies, Title Examiners, Attorneys and Closing Agents. The Union County Auditor’s Office will be implementing new procedures for splits, condominiums, subdivisions, combinations, and plats created in 2021 and in future years. CLICK HERE for further details.

Please Click on one of the Image Links below to go to the desired web application. 


Union County GIS Map       


NOTICE: Internet Explorer browser and Microsoft Windows 7 Problems - CLICK HERE for details. Please send your feedback or map questions to:   maps@co.union.oh.us     

Parcel Search    


Subdivision Plat Search    


Union County Web Portal    


Historical Map Collections