Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| York Temple Country Club | Locale | 252 | Franklin | 40 06 54 N | 083 01 39 W |
| York Township School | School | 211 | Athens | 39 27 47 N | 082 11 20 W |
| Yorkshire | Populated Place | 299 | Darke | 40 19 31 N | 084 29 44 W |
| Yorkshire Post Office (historical) | Post Office | 299 | Darke | 40 19 30 N | 084 29 45 W |
| Yorktown | Populated Place | 274 | Tuscarawas | 40 26 48 N | 081 30 55 W |
| Yorktown Green Park | Park | 261 | Cuyahoga | 41 23 19 N | 081 45 40 W |
| Yorktown Middle School | School | 242 | Franklin | 39 56 40 N | 082 50 42 W |
| Yorktown Post Office (historical) | Post Office | 278 | Tuscarawas | 40 26 50 N | 081 30 54 W |
| Yorktown Shopping Center | Locale | 261 | Cuyahoga | 41 23 15 N | 081 45 39 W |
| Yorkville | Populated Place | 201 | Belmont | 40 09 16 N | 080 42 37 W |
| Yorkville Post Office | Post Office | 209 | Jefferson | 40 09 15 N | 080 42 39 W |
| Yorkville School (historical) | School | 196 | Jefferson | 40 09 28 N | 080 42 28 W |
| Yost | Populated Place | 262 | Perry | 39 54 31 N | 082 19 58 W |
| Yost Hall | Building | 208 | Cuyahoga | 41 30 13 N | 081 36 32 W |
| Yost Post Office (historical) | Post Office | 261 | Perry | 39 54 30 N | 082 19 60 W |
| Yost Run | Stream | | Monroe | 39 47 41 N | 080 49 55 W |
| Youba | Populated Place | 269 | Athens | 39 12 54 N | 081 44 41 W |
| Youba Post Office (historical) | Post Office | 268 | Athens | 39 12 55 N | 081 44 39 W |
| Youba Ridge | Ridge | 269 | Athens | 39 13 00 N | 081 44 24 W |
| Youctangee Park | Park | 187 | Ross | 39 20 20 N | 082 59 05 W |
| Young American School (historical) | School | 325 | Muskingum | 40 06 06 N | 081 50 14 W |
| Young Cemetery | Cemetery | 191 | Adams | 38 42 00 N | 083 24 22 W |
| Young Cemetery | Cemetery | 263 | Athens | 39 22 14 N | 082 12 34 W |
| Young Cemetery | Cemetery | 275 | Brown | 38 57 29 N | 083 54 43 W |
| Young Cemetery | Cemetery | 208 | Henry | 41 26 21 N | 084 00 27 W |
| Young Cemetery | Cemetery | 220 | Paulding | 41 00 44 N | 084 23 08 W |
| Young Cemetery | Cemetery | 183 | Scioto | 38 53 50 N | 083 12 15 W |
| Young Elementary School | School | 351 | Summit | 41 00 33 N | 081 24 24 W |
| Young Farm Cemetery | Cemetery | 210 | Pickaway | 39 30 42 N | 082 57 35 W |
| Young Hickory | Populated Place | 347 | Muskingum | 39 46 46 N | 081 44 57 W |
| Young Hickory Post Office (historical) | Post Office | 346 | Muskingum | 39 46 45 N | 081 44 54 W |
| Young Hollow | Valley | | Hocking | 39 28 07 N | 082 34 13 W |
| Young Ladies Institute (historical) | School | 299 | Licking | 40 04 08 N | 082 31 26 W |
| Young Post Office (historical) | Post Office | 180 | Scioto | 38 54 01 N | 083 12 20 W |
| Young School (historical) | School | 264 | Ross | 39 25 31 N | 083 15 03 W |
| Young's Corners Fellowship Church | Church | | Medina | 41 08 18 N | 081 44 09 W |
| Youngs | Populated Place | 182 | Scioto | 38 53 55 N | 083 12 22 W |
| Youngs Branch | Stream | | Scioto | 38 45 12 N | 082 40 01 W |
| Youngs Corners | Populated Place | 348 | Medina | 41 08 10 N | 081 44 06 W |
| Youngs Field | Airport | 232 | Hamilton | 39 17 12 N | 084 16 23 W |
| Youngs School (historical) | School | 299 | Mahoning | 41 04 30 N | 080 49 23 W |
| Youngs School (historical) | School | 286 | Preble | 39 40 21 N | 084 36 32 W |
| Youngstown | Populated Place | 259 | Mahoning | 41 05 59 N | 080 38 58 W |
| Youngstown Baptist Church | Church | 314 | Mahoning | 41 05 38 N | 080 42 43 W |
| Youngstown City Hall | Building | 261 | Mahoning | 41 06 02 N | 080 38 59 W |
| Youngstown Country Club | Locale | 288 | Trumbull | 41 08 37 N | 080 37 56 W |
| Youngstown Development Center Heliport | Airport | 310 | Mahoning | 41 07 50 N | 080 44 56 W |
| Youngstown Elser Metro Airport | Airport | 321 | Mahoning | 40 57 30 N | 080 40 29 W |
| Youngstown Executive Airport (historical) | Airport | 299 | Mahoning | 41 03 33 N | 080 49 54 W |
| Youngstown Municipal Airport | Airport | 356 | Trumbull | 41 15 32 N | 080 40 33 W |
| Youngstown Post Office | Post Office | 259 | Mahoning | 41 06 00 N | 080 38 59 W |
| Youngstown State University | School | 274 | Mahoning | 41 06 15 N | 080 38 49 W |
| Youngsville | Populated Place | 270 | Adams | 38 55 22 N | 083 34 03 W |
| Yount Pond | Reservoir | 278 | Trumbull | 41 16 48 N | 080 46 53 W |
| Yount Pond Dam | Dam | 278 | Trumbull | 41 16 48 N | 080 46 53 W |
| Youtsey Cemetery | Cemetery | 302 | Miami | 40 05 11 N | 084 06 37 W |
| Youtz Elementary School | School | 334 | Stark | 40 49 06 N | 081 20 06 W |
| Yugoslavian Seventh Day Adventist Church | Church | 296 | Summit | 41 02 23 N | 081 34 15 W |
| Yutzy Cemetery | Cemetery | 357 | Holmes | 40 36 39 N | 081 44 13 W |
| Yutzy Ditch | Canal | 291 | Madison | 40 02 37 N | 083 17 60 W |
| Zahns Corners | Populated Place | 202 | Pike | 39 03 38 N | 082 57 45 W |
| Zaleski | Populated Place | 230 | Vinton | 39 16 56 N | 082 23 42 W |
| Zaleski Camp | Locale | 312 | Vinton | 39 17 26 N | 082 20 13 W |
| Zaleski Ditch | Canal | 200 | Lucas | 41 34 52 N | 083 47 03 W |
| Zaleski Elementary School | School | 230 | Vinton | 39 17 12 N | 082 23 34 W |
| Zaleski State Forest | Forest | 284 | Vinton | 39 15 34 N | 082 23 57 W |
| Zaleski State Forest Landing Strip | Airport | 214 | Vinton | 39 16 22 N | 082 23 38 W |
| Zane Camp | Locale | 219 | Muskingum | 40 09 15 N | 081 54 39 W |
| Zane Caverns Park | Park | 386 | Logan | 40 22 26 N | 083 38 04 W |
| Zane Park | Park | 256 | Fairfield | 39 42 50 N | 082 36 08 W |
| Zane Plaza Shopping Center | Locale | 234 | Muskingum | 39 54 31 N | 082 01 08 W |
| Zane Plaza Shopping Center | Locale | 192 | Ross | 39 21 28 N | 082 58 43 W |
| Zane School | School | 354 | Logan | 40 17 25 N | 083 34 50 W |
| Zane Trace Middle School | School | 241 | Ross | 39 28 25 N | 082 54 39 W |
| Zanesfield | Populated Place | 358 | Logan | 40 20 18 N | 083 40 38 W |
| Zanesfield Cemetery | Cemetery | 357 | Logan | 40 19 59 N | 083 40 22 W |
| Zanesfield Post Office | Post Office | 359 | Logan | 40 20 20 N | 083 40 40 W |
| Zanesville | Populated Place | 206 | Muskingum | 39 56 25 N | 082 00 47 W |
| Zanesville Art Center | Building | 255 | Muskingum | 39 58 44 N | 082 00 40 W |
| Zanesville City Hall | Building | 218 | Muskingum | 39 56 31 N | 082 00 25 W |
| Zanesville Country Club | Locale | 238 | Muskingum | 39 58 36 N | 082 01 48 W |
| Zanesville High School | School | 241 | Muskingum | 39 57 35 N | 082 01 02 W |
| Zanesville Honor Camp | Locale | 239 | Muskingum | 40 01 51 N | 081 58 15 W |
| Zanesville Industrial Park | Locale | 244 | Muskingum | 40 00 17 N | 082 01 36 W |
| Zanesville Memorial Park | Cemetery | 240 | Muskingum | 39 58 54 N | 082 02 00 W |
| Zanesville Municipal Airport | Airport | 270 | Muskingum | 39 56 39 N | 081 53 31 W |
| Zanesville Post Office | Post Office | 218 | Muskingum | 39 56 19 N | 082 00 24 W |
| Zanesville Seventh Day Adventist Church | Church | 231 | Muskingum | 39 58 02 N | 082 00 46 W |
| Zanesville State Nursery | Locale | 234 | Muskingum | 40 01 45 N | 081 58 24 W |
| Zanesville Terrace | Populated Place | 229 | Muskingum | 39 53 58 N | 082 02 01 W |
| Zaza School (historical) | School | 317 | Greene | 39 38 14 N | 083 46 16 W |
| Zeal (historical) | Populated Place | 204 | Meigs | 39 11 47 N | 082 17 46 W |
| Zeal Post Office (historical) | Post Office | 201 | Meigs | 39 11 45 N | 082 17 45 W |
| Zebulon Missionary Baptist Church | Church | 241 | Montgomery | 39 47 06 N | 084 15 57 W |
| Zehler Hall | Building | 243 | Montgomery | 39 44 20 N | 084 10 38 W |
| Zehner Cemetery | Cemetery | 323 | Ashland | 40 46 48 N | 082 22 08 W |
| Zeigler Cemetery | Cemetery | 314 | Fairfield | 39 46 58 N | 082 34 38 W |
| Zeigler Cemetery | Cemetery | 353 | Logan | 40 19 12 N | 083 48 30 W |
| Zeigler Landing Strip | Airport | 207 | Lucas | 41 36 16 N | 083 52 04 W |
| Zeiter Cemetery | Cemetery | 394 | Richland | 40 49 43 N | 082 30 54 W |
| Zeller-Smith Bridge | Bridge | 250 | Fairfield | 39 52 52 N | 082 45 08 W |
| Zeno | Populated Place | 335 | Muskingum | 39 47 54 N | 081 44 00 W |
| Zeno Post Office (historical) | Post Office | 342 | Muskingum | 39 47 55 N | 081 43 59 W |
| Zepernick Lake | Reservoir | 383 | Columbiana | 40 47 12 N | 080 58 47 W |
| Zepernick Lake Dam | Dam | 383 | Columbiana | 40 47 12 N | 080 58 47 W |
| Zepernick Lake Wildlife Area | Park | 387 | Columbiana | 40 47 19 N | 080 59 07 W |
| Zeppernick Cemetery | Cemetery | 353 | Columbiana | 40 48 34 N | 080 41 23 W |
| Zerby Cemetery | Cemetery | 329 | Darke | 40 17 09 N | 084 41 23 W |
| Zerkle Cemetery | Cemetery | 353 | Champaign | 40 02 34 N | 083 53 53 W |
| Zesiger Cemetery | Cemetery | 206 | Monroe | 39 45 27 N | 080 54 25 W |