| Arches | 5 | 
| Areas | 28 | 
| Bars | 49 | 
| Basins | 7 | 
| Bays | 51 | 
| Beaches | 12 | 
| Benches | 7 | 
| Bends | 14 | 
| Canals | 571 | 
| Capes | 39 | 
| Channels | 14 | 
| Cliffs | 21 | 
| Crossings | 13 | 
| Falls | 17 | 
| Flats | 28 | 
| Gaps | 8 | 
| Guts | 1 | 
| Islands | 132 | 
| Lakes | 329 | 
| Pillars | 8 | 
| Ranges | 4 | 
| Rapids | 2 | 
| Reservoirs | 1,204 | 
| Ridges | 342 | 
| Springs | 8 | 
| Streams | 3,969 | 
| Summits | 326 | 
| Swamps | 42 | 
| Valleys | 683 | 
| Woods | 15 | 
| Airports | |
| Public and Private Airports | 374 | 
| Heliports | 224 | 
| Seaplane Bases and Anchorages | 3 | 
| Cemeteries | 7,414 | 
| Education - Schools | |
| Other Schools | 1,115 | 
| Elementary Schools | 1,537 | 
| Middle Schools | 591 | 
| High Schools | 806 | 
| Colleges & University | 196 | 
| Technical & Trade School | 123 | 
| Emergency Response & Law Enforcement | |
| Ambulance Service | 267 | 
| Fire Station & EMS Station | 1,772 | 
| Law Enforcement | 765 | 
| Prisons & Correctional Facilities | 49 | 
| Federal Lands & Reserves | |
| National Cemeteries | 2 | 
| Forests | 1 | 
| Parks | 8 | 
| Wilderness Areas | 1 | 
| Wildlife Areas | 6 | 
| Government Services | |
| City or Town Hall | 1,115 | 
| Court House | 116 | 
| Post Offices | 1,135 | 
| Hospitals & Medical Centers | 253 | 
| Public Landmarks & Attractions | |
| Campgrounds | 12 | 
| Picnic Areas | 36 | 
| Trailheads | 45 | 
| Visitor Centers | 12 | 
| Bars | 1 | 
| Canals | 1 | 
| Civil | 20 | 
| Crossings | 8 | 
| Falls | 1 | 
| Islands | 14 | 
| Lakes | 11 | 
| Military (Historical) | 61 | 
| Populated Places | 587 | 
| Reservoirs | 3 | 
| Summits | 1 | 
| Swamps | 14 | 
| Woods | 2 | 
| Ohio's National Historic Landmarks | |
|---|---|
| 66 | |