Union County, Ohio Genealogy Guide

Union County, Ohio (Map It) was created on April 1, 1820 from Delaware County, Franklin County, Logan County and Madison County. This county was named as such due to it formed by a union of four counties . Learn More About State of Ohio History

Union County is bordered by Marion County (northeast), Delaware County (east), Franklin County (southeast), Madison County (south), Champaign County (southwest), Logan County (west), Hardin County (northwest) .. A Map of Union County, Ohio contains detailed information about roads and boundaries, these maps may include rural communities, churches, and cemeteries.

Union County Cities and Towns include Dublin, Marysville, Magnetic Springs, Milford Center, Plain City, Richwood, Unionville Center. Other communities include Broadway, Chuckery, Irwin, New California, Raymond. A Map of Union County, Ohio contains detailed information about roads and boundaries, these maps may include rural communities, churches, and cemeteries.

Union County Townships include Allen, Claibourne, Darby, Dover, Jackson, Jerome, Leesburg, Liberty, Millcreek, Paris, Taylor, Union, Washington, York.

Union County, Ohio Courthouse Records

Union County, Ohio Courthouse
Union County, OH Courthouse
Union County Townships Map
Union County, OH Township Map

The Union County Courthouse is located in Marysville, Ohio. Learn More About State of Ohio Court, Tax, Land and Probate Records.

Please contact the each clerk's department to confirm mailing address, hours, fees and other information before visiting or requesting information because contact information sometimes changes.  The Clerk's Office DOES NOT DO RESEARCH.  The documents are available to interested parties, barring confidential issues.  Most staff will assist people in finding the materials, but it is up to the individual to do the research.

The following dates indicates what vital, land, probate, and court records are in Union county. The date listed for each category of record is usually the earliest registration filed. The earliest date does not indicate that there are numerous records for that year and does not mean that all such events were actually registered.

  • Union County Clerk of Probate Court has Marriage Records from 1820 and Probate Records from 1820. The County Clerk of Probate Court handles the probating of wills, estate administrations, trusts, guardianships, adoptions, birth corrections, delayed birth registrations and issues marriage licenses. The Probate Court is that the Probate Judge is the ex-officio Clerk of Courts, thus, the Court performs all the duties as its own Clerk of Courts.
  • Union County Recorder has Land Records from 1811. The County Recorder has the duty of keeping specific records which may include: deeds, mortgages, military discharges, plats, etc.
  • Union County Clerk of Court of Common Pleas has Court Records from 1820. The County Clerk of Court of Common Pleas is responsible for duties that include filing, docketing, indexing, and preserving all court pleadings for civil, felony criminal and domestic relations cases. Other services provided by the Clerk of Court of Common Pleas are administering oaths, keeping naturalization records, and recording and retention of coroner records.
  • The Union County Health Department has Birth & Death Records from 1908-Present. For birth and death records prior to Dec. 20, 1908, contact the Probate Court of this county.

Union County, Ohio Census Records

Union County, Ohio Vital Records

Union County, Ohio Resources

Union County, Ohio External Links