Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Thornton Post Office (historical) | Post Office | 294 | Ross | 39 23 30 N | 083 19 30 W |
| Thornton School (historical) | School | 293 | Ross | 39 23 26 N | 083 19 37 W |
| Three Locks | Populated Place | 186 | Ross | 39 15 11 N | 082 54 33 W |
| Three Locks Cemetery | Cemetery | 204 | Ross | 39 15 35 N | 082 55 10 W |
| Three Locks Church | Church | 190 | Ross | 39 14 49 N | 082 54 10 W |
| Thrifton | Populated Place | 268 | Ross | 39 20 36 N | 083 22 01 W |
| Thrifton Post Office (historical) | Post Office | 268 | Ross | 39 20 35 N | 083 21 60 W |
| Throckmorton Cemetery | Cemetery | 253 | Ross | 39 27 29 N | 082 49 49 W |
| Tiffin Elementary School | School | 186 | Ross | 39 19 52 N | 082 58 20 W |
| Timmons Cemetery | Cemetery | 200 | Ross | 39 18 00 N | 082 46 52 W |
| Toad Hollow | Valley | | Ross | 39 15 59 N | 082 55 46 W |
| Tong Hollow | Valley | | Ross | 39 14 41 N | 083 14 56 W |
| Tong Hollow School (historical) | School | 225 | Ross | 39 14 56 N | 083 15 08 W |
| Tootle School (historical) | School | 222 | Ross | 39 28 11 N | 083 05 46 W |
| Township of Buckskin | Civil | 335 | Ross | 39 20 09 N | 083 16 50 W |
| Township of Colerain | Civil | 274 | Ross | 39 26 29 N | 082 46 38 W |
| Township of Concord | Civil | 225 | Ross | 39 24 30 N | 083 12 09 W |
| Township of Deerfield | Civil | 223 | Ross | 39 30 03 N | 083 08 43 W |
| Township of Franklin | Civil | 211 | Ross | 39 12 37 N | 082 54 51 W |
| Township of Green | Civil | 235 | Ross | 39 27 14 N | 082 54 53 W |
| Township of Harrison | Civil | 227 | Ross | 39 20 27 N | 082 49 15 W |
| Township of Huntington | Civil | 291 | Ross | 39 14 00 N | 083 03 19 W |
| Township of Jefferson | Civil | 176 | Ross | 39 12 32 N | 082 48 12 W |
| Township of Liberty | Civil | 212 | Ross | 39 15 59 N | 082 48 55 W |
| Township of Paint | Civil | 244 | Ross | 39 15 51 N | 083 18 22 W |
| Township of Paxton | Civil | 247 | Ross | 39 12 39 N | 083 15 03 W |
| Township of Scioto | Civil | 218 | Ross | 39 19 49 N | 082 59 16 W |
| Township of Springfield | Civil | 248 | Ross | 39 21 05 N | 082 53 47 W |
| Township of Twin | Civil | 224 | Ross | 39 17 18 N | 083 09 54 W |
| Township of Union | Civil | 263 | Ross | 39 25 13 N | 083 04 31 W |
| Traub Knob | Summit | 375 | Ross | 39 11 57 N | 083 07 30 W |
| Trinity United Methodist Church | Church | 192 | Ross | 39 20 00 N | 082 58 46 W |
| True Hollow | Valley | | Ross | 39 21 35 N | 082 51 11 W |
| Tucson | Populated Place | 219 | Ross | 39 21 23 N | 082 49 34 W |
| Tucson Post Office (historical) | Post Office | 218 | Ross | 39 21 25 N | 082 49 35 W |
| Turkey Ridge | Ridge | 378 | Ross | 39 17 59 N | 083 16 13 W |
| Tuvell Cemetery | Cemetery | 317 | Ross | 39 12 49 N | 083 09 53 W |
| Tweed Cemetery | Cemetery | 207 | Ross | 39 14 22 N | 082 47 40 W |
| Twin Elementary School | School | 214 | Ross | 39 17 02 N | 083 09 33 W |
| Twin Knobs | Summit | 322 | Ross | 39 19 09 N | 082 51 10 W |
| Twin Township Cemetery | Cemetery | 207 | Ross | 39 17 14 N | 083 08 58 W |
| Tyler Memorial United Methodist Church | Church | 190 | Ross | 39 20 17 N | 082 59 28 W |
| Union Cemetery | Cemetery | 292 | Ross | 39 23 25 N | 083 03 09 W |
| Union Chapel | Church | 260 | Ross | 39 23 22 N | 082 52 09 W |
| Union Chapel | Church | 210 | Ross | 39 25 40 N | 083 00 49 W |
| Union Chapel Cemetery | Cemetery | 260 | Ross | 39 23 22 N | 082 52 09 W |
| Union Chapel Cemetery | Cemetery | 211 | Ross | 39 25 40 N | 083 00 50 W |
| Union-Scioto High School | School | 207 | Ross | 39 22 04 N | 083 01 12 W |
| Union-Scioto Intermediate School | School | 202 | Ross | 39 22 02 N | 083 01 01 W |
| Union-Scioto Primary School | School | 201 | Ross | 39 22 01 N | 083 00 59 W |
| United Church | Church | 207 | Ross | 39 18 15 N | 082 46 56 W |
| Upland Orchard | Locale | 290 | Ross | 39 15 32 N | 083 07 48 W |
| Upper Twin Creek | Stream | | Ross | 39 16 38 N | 083 09 09 W |
| Valley School (historical) | School | 240 | Ross | 39 15 32 N | 083 18 03 W |
| Valley Vista Airport | Airport | 217 | Ross | 39 14 15 N | 083 15 39 W |
| Valley Vista Golf Course | Locale | 228 | Ross | 39 14 50 N | 083 15 09 W |
| Vauces | Populated Place | 188 | Ross | 39 16 13 N | 082 53 24 W |
| Veterans Administration Hospital Heliport | Airport | 195 | Ross | 39 22 00 N | 082 59 60 W |
| View (historical) | Populated Place | 292 | Ross | 39 24 13 N | 083 03 02 W |
| View Post Office (historical) | Post Office | 293 | Ross | 39 24 15 N | 083 02 60 W |
| Vigo | Populated Place | 187 | Ross | 39 14 52 N | 082 47 35 W |
| Vigo Post Office (historical) | Post Office | 189 | Ross | 39 14 50 N | 082 47 35 W |
| Walnut Creek | Stream | | Ross | 39 13 18 N | 082 52 28 W |
| Walnut Street United Methodist Church | Church | 192 | Ross | 39 19 56 N | 082 59 08 W |
| Walnut Valley Church | Church | 242 | Ross | 39 24 00 N | 082 50 07 W |
| Ware Cemetery | Cemetery | 265 | Ross | 39 29 26 N | 083 11 28 W |
| Waugh Cemetery | Cemetery | 309 | Ross | 39 24 44 N | 083 17 51 W |
| Waugh Run | Stream | | Ross | 39 28 33 N | 083 04 16 W |
| Waugh School (historical) | School | 310 | Ross | 39 24 27 N | 083 16 55 W |
| WBEX-AM (Chillicothe) | Tower | 256 | Ross | 39 19 56 N | 082 59 50 W |
| WCHI-AM (Chillicothe) | Tower | 185 | Ross | 39 19 13 N | 082 57 03 W |
| Webb Hollow | Valley | | Ross | 39 13 42 N | 082 54 09 W |
| Weller Cemetery | Cemetery | 281 | Ross | 39 15 54 N | 083 18 50 W |
| Wesley Chapel | Church | 205 | Ross | 39 22 40 N | 082 58 23 W |
| Wesleyan Church | Church | 192 | Ross | 39 19 53 N | 082 58 42 W |
| West Junction | Populated Place | 185 | Ross | 39 13 05 N | 082 46 06 W |
| Western Junior High School | School | 192 | Ross | 39 20 14 N | 082 59 39 W |
| WFCB-FM (Chillicothe) | Tower | 259 | Ross | 39 19 52 N | 082 59 49 W |
| Whetstone Run | Stream | | Ross | 39 27 28 N | 083 16 20 W |
| Whetstone School (historical) | School | 287 | Ross | 39 26 26 N | 083 18 14 W |
| Whisky Run | Stream | | Ross | 39 11 30 N | 082 49 34 W |
| Wilson Cemetery | Cemetery | 292 | Ross | 39 23 04 N | 083 16 03 W |
| Wilson School (historical) | School | 305 | Ross | 39 22 52 N | 083 16 07 W |
| Wiper Memorial Church | Church | 330 | Ross | 39 13 48 N | 083 07 60 W |
| WKKJ-FM (Chillicothe) | Tower | 259 | Ross | 39 19 52 N | 082 59 49 W |
| Woods Hollow | Valley | | Ross | 39 11 05 N | 082 58 18 W |
| Worthington Elementary School | School | 195 | Ross | 39 20 30 N | 082 59 49 W |
| WVXC-FM (Chillicothe) | Tower | 348 | Ross | 39 20 45 N | 083 11 15 W |
| WXIZ-FM (Waverly) | Tower | 306 | Ross | 39 13 17 N | 082 59 33 W |
| Yankee Hill Cemetery | Cemetery | 281 | Ross | 39 14 45 N | 083 03 12 W |
| Yankeetown | Populated Place | 276 | Ross | 39 14 33 N | 083 03 25 W |
| Yellowbud | Populated Place | 198 | Ross | 39 30 15 N | 083 00 35 W |
| Yellowbud Post Office (historical) | Post Office | 200 | Ross | 39 30 15 N | 083 00 37 W |
| Youctangee Park | Park | 187 | Ross | 39 20 20 N | 082 59 05 W |
| Young School (historical) | School | 264 | Ross | 39 25 31 N | 083 15 03 W |
| Zane Plaza Shopping Center | Locale | 192 | Ross | 39 21 28 N | 082 58 43 W |
| Zane Trace Middle School | School | 241 | Ross | 39 28 25 N | 082 54 39 W |
| Zion Baptist Church | Church | 195 | Ross | 39 20 14 N | 082 59 57 W |
| Aldrich Pond | Reservoir | 187 | Sandusky | 41 26 58 N | 083 15 09 W |
| Anderson Field | Park | 190 | Sandusky | 41 21 40 N | 083 08 09 W |
| Atkinson Elementary School | School | 191 | Sandusky | 41 20 12 N | 083 06 02 W |
| Bakertown Cemetery | Cemetery | 210 | Sandusky | 41 17 18 N | 083 00 54 W |
| Ballville | Populated Place | 189 | Sandusky | 41 19 40 N | 083 07 56 W |
| Ballville Dam | Dam | 297 | Sandusky | 40 32 30 N | 083 08 12 W |
| Ballville Township House | Building | 199 | Sandusky | 41 18 43 N | 083 07 49 W |
| Bark Creek | Stream | | Sandusky | 41 25 07 N | 083 04 20 W |
| Bay View | Populated Place | 175 | Sandusky | 41 25 57 N | 082 57 38 W |
| Bayshore | Populated Place | 175 | Sandusky | 41 25 10 N | 082 56 04 W |
| Beeler Cemetery | Cemetery | 189 | Sandusky | 41 20 56 N | 083 01 02 W |
| Bellevue Assembly of God Church | Church | 230 | Sandusky | 41 15 58 N | 082 51 20 W |