Ohio · FIPS 39101 · County seat: Marion
Marion County, OH GIS & Parcel Viewer
Parcel lookups for Marion County start at Ohio Statewide Parcels layer (ArcGIS Map Viewer). This page gives you that official link, notes on how the viewer works, and links to the counties next door.
Open the Marion County statewide map ↗
Opens arcgis.com in a new tab. We link out and never embed or copy parcel data.
Quick facts
| Official map | Ohio Statewide Parcels layer (ArcGIS Map Viewer) |
|---|---|
| Type | Statewide map (covers all of Ohio) |
| Website | arcgis.com |
| Access | Free, no login (checked Oct 2026) |
| County seat | Marion |
| Population | 64,851 (2023 Census Bureau estimate) |
| Land area | 404 sq mi |
| FIPS code | 39101 |
Where the parcel data comes from
The link goes to a statewide map (Ohio Statewide Parcels layer (ArcGIS Map Viewer)). It shows parcels for Marion County along with the rest of Ohio. Because a state agency compiles this layer from local data, check with the Marion County assessor or recorder before relying on a recent change. As of our October 2026 test, anyone could open it without signing in or paying.
How to use the Marion County viewer
- Open the statewide map with the button above.
- Search for an address in Marion County, or zoom to the county on the map.
- Click a parcel to see the attributes the state layer includes.
- Write down the parcel number and use it for records searches with the Marion County assessor or recorder.
If an address search comes up empty, try the parcel number from a tax bill or deed instead, or click the lot on the map.
About Marion County
Marion County had an estimated 64,851 residents in 2023, according to the Census Bureau. With about 404 square miles of land, that works out to roughly 161 people per square mile. By population it ranks 38th of 88 counties in Ohio. Its county seat is Marion.
Neighboring counties
Parcels close to the edge of Marion County can fall in the next county over. Neighboring counties:
Before you rely on the lines
Treat the map as a guide, not a boundary survey: parcel outlines are often shifted a bit from the real corners. A licensed surveyor settles exact lines.