Ohio · FIPS 39137 · County seat: Ottawa
Putnam County, OH GIS & Parcel Viewer
Use this page to reach the official statewide parcel map for Putnam County, Ohio. The button below opens Ohio Statewide Parcels layer (ArcGIS Map Viewer) in a new tab, so you can look up parcels by address, owner or parcel number on the source site itself.
Open the Putnam County statewide map ↗
Opens arcgis.com in a new tab. We link out and never embed or copy parcel data.
Putnam County at a glance
| 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 | Ottawa |
| Population | 34,199 (2023 Census Bureau estimate) |
| Land area | 483 sq mi |
| FIPS code | 39137 |
Who runs this map
The link goes to a statewide map (Ohio Statewide Parcels layer (ArcGIS Map Viewer)). It shows parcels for Putnam County along with the rest of Ohio. A statewide layer can trail the county's own books by weeks or months, so treat it as a fast first look rather than the final word. Our October 2026 check found the map open to the public, with no account or payment needed.
How to use the Putnam County viewer
- Open the statewide map with the button above.
- Search for an address in Putnam 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 Putnam 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.
Putnam County by the numbers
Putnam County had an estimated 34,199 residents in 2023, according to the Census Bureau. With about 483 square miles of land, that works out to roughly 71 people per square mile. Among Ohio's 88 counties, it is the 70th largest by population. Ottawa serves as the county seat.
Neighboring counties
Parcels close to the edge of Putnam County can fall in the next county over. Neighboring counties:
A note on accuracy
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.