ParcelioUnion County, Ohio: parcel data and property records
33,121 Union County parcels on one searchable map: owner of record and mailing address, assessed and appraised values and recorded sales, plus lot boundaries and location. Screen by absentee ownership, acreage, year built and owner tenure.
What the data covers
These bars show real field-by-field coverage for Union County in our database, so you know exactly what you are getting before you search. Numbers refresh as the county publishes new records.
Not held for Union County: vacancy. Those fields are carried where the county publishes them.
Most recent recorded sale on file: 2026-09-24.
Areas covered
Parcel counts by place, largest first: Marysville (9,234), Dublin (1,844), Richwood (1,252), New California (1,148), Milford Center (500).
Recent sales
1,069 Union County parcels have a recorded sale dated since November 2025. Across 831 priced sales, with a deed recorded on several parcels counted once, the median price was $392,500 and the middle half sold between $270,000 and $599,000.
Land use mix
The most common land use or property class on file, as the county writes it, by share of parcels with one: 510: Res-Single Family 40%, 511: Res-Custom Code 14%, 110: Agr-CAUV-Vacant Land 10%, 500: Res-Vacant Land 8%, 111: Agr-CAUV-Cash-Grain Farm 5%.
Nearest counties
- Delaware County: about 19 mi away, 94,350 parcels
- Marion County: about 22 mi away, 34,665 parcels
- Logan County: about 22 mi away, 36,569 parcels
- Champaign County: about 24 mi away, 25,945 parcels
- Madison County: about 28 mi away, 21,868 parcels
Search Union County parcels
The map is free to browse - parcel lines, boundaries, and location. Owner of record, assessed values, recorded sales, year built and the full parcel report come with a plan that costs less than one hour of a title runner's time.
Explore the Union County map See plans
Common questions
How many parcels are in Union County, Ohio?
Parcelio carries 33,121 parcel records for Union County, Ohio, with owner information on 99 percent of them.
Can I find out who owns a property in Union County?
Yes. Search by owner name, address, or parcel number to pull the record: owner of record and mailing address, assessed values, recorded sales, year built and lot lines on the map. Sale records here currently run through 2026-09-24.
How do I find vacant land or absentee owners in Union County?
We do not hold vacancy data for Union County yet, so this filter has nothing to match there. Vacancy filters work in the counties where we hold the field. Union County does have owner mailing state: 1,159 parcels have an owner mailing address outside Ohio.
Can I search Union County by lot size or acreage?
Yes. Acreage is on 99 percent of Union County parcels, mapped from the parcel boundary, and the advanced search filters on it directly - set a minimum and maximum to pull every tract in that range, then stack vacancy or absentee ownership on top.