Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Saint Paul African Methodist Episcopal Church | Church | 267 | Allen | 40 44 18 N | 084 07 41 W |
| Saint Paul United Methodist Church | Church | 244 | Allen | 40 47 17 N | 084 12 11 W |
| Saint Peter Evangelical Lutheran Church | Church | 235 | Allen | 40 50 47 N | 084 20 08 W |
| Saint Rita Hospital | Hospital | 267 | Allen | 40 44 27 N | 084 07 03 W |
| Saint Ritas Medical Center Heliport | Airport | 262 | Allen | 40 44 22 N | 084 07 18 W |
| Saint Rose Catholic Church | Church | 271 | Allen | 40 44 48 N | 084 06 32 W |
| Saint Rose School | School | 271 | Allen | 40 44 48 N | 084 06 33 W |
| Salem Cemetery | Cemetery | 300 | Allen | 40 40 40 N | 083 57 44 W |
| Salem Church | Church | 242 | Allen | 40 48 59 N | 084 11 09 W |
| Schoonover Lake | Reservoir | 267 | Allen | 40 44 48 N | 084 05 48 W |
| Schoonover Lake Dam | Dam | 267 | Allen | 40 44 48 N | 084 05 48 W |
| Schoonover Park | Park | 265 | Allen | 40 44 52 N | 084 05 51 W |
| Scotts Crossing | Populated Place | 237 | Allen | 40 49 04 N | 084 16 22 W |
| Scotts Crossing Post Office (historical) | Post Office | 237 | Allen | 40 49 05 N | 084 16 20 W |
| Second Baptist Church | Church | 263 | Allen | 40 44 19 N | 084 06 43 W |
| Shannon Cemetery | Cemetery | 251 | Allen | 40 53 39 N | 083 53 16 W |
| Sharon Park United Methodist Church | Church | 258 | Allen | 40 44 06 N | 084 09 25 W |
| Shawnee Cemetery | Cemetery | 254 | Allen | 40 42 06 N | 084 09 12 W |
| Shawnee Church | Church | 257 | Allen | 40 41 59 N | 084 09 08 W |
| Shawnee Country Club | Locale | 262 | Allen | 40 42 42 N | 084 09 34 W |
| Shawnee High School | School | 258 | Allen | 40 41 30 N | 084 09 60 W |
| Shere School (historical) | School | 251 | Allen | 40 43 02 N | 084 22 57 W |
| Shiloh Missionary Baptist Church | Church | 273 | Allen | 40 42 34 N | 084 06 20 W |
| Shockey Cemetery | Cemetery | 293 | Allen | 40 39 33 N | 083 59 29 W |
| Sixmile Creek | Stream | | Allen | 40 44 56 N | 084 19 07 W |
| Slabtown | Populated Place | 260 | Allen | 40 47 20 N | 084 03 07 W |
| Smith Cemetery | Cemetery | 293 | Allen | 40 40 46 N | 083 58 35 W |
| Smith Cemetery | Cemetery | 254 | Allen | 40 47 18 N | 084 04 49 W |
| South Junior High School | School | 268 | Allen | 40 43 40 N | 084 05 59 W |
| South Side Christian Church | Church | 263 | Allen | 40 43 50 N | 084 06 10 W |
| South Warsaw | Populated Place | 282 | Allen | 40 39 30 N | 084 01 57 W |
| South Warsaw Post Office (historical) | Post Office | 282 | Allen | 40 39 30 N | 084 01 60 W |
| Southworth | Populated Place | 245 | Allen | 40 45 50 N | 084 20 24 W |
| Southworth Post Office (historical) | Post Office | 245 | Allen | 40 45 50 N | 084 20 25 W |
| Spencerville | Populated Place | 253 | Allen | 40 42 32 N | 084 21 13 W |
| Spencerville Cemetery | Cemetery | 256 | Allen | 40 42 01 N | 084 21 24 W |
| Spencerville Elementary School | School | 253 | Allen | 40 42 25 N | 084 20 47 W |
| Spencerville High School | School | 254 | Allen | 40 42 18 N | 084 20 40 W |
| Spencerville Middle School | School | 253 | Allen | 40 42 25 N | 084 20 50 W |
| Spencerville Post Office | Post Office | 253 | Allen | 40 42 24 N | 084 21 15 W |
| Spencerville Reservoir | Reservoir | 253 | Allen | 40 44 11 N | 084 13 28 W |
| Springbrook Golf Course | Locale | 251 | Allen | 40 47 51 N | 084 06 06 W |
| Sproat Cemetery | Cemetery | 260 | Allen | 40 48 34 N | 084 01 58 W |
| State Hospital Cemetery | Cemetery | 267 | Allen | 40 46 24 N | 084 05 41 W |
| Sugar Creek Cemetery | Cemetery | 255 | Allen | 40 47 20 N | 084 05 58 W |
| Sugar Creek Church | Church | 255 | Allen | 40 47 18 N | 084 05 58 W |
| Swalley Ditch | Canal | 254 | Allen | 40 43 26 N | 084 11 31 W |
| Sycamore Creek | Stream | | Allen | 40 53 59 N | 084 05 14 W |
| Tamarac Golf Course | Locale | 253 | Allen | 40 44 42 N | 084 10 23 W |
| Tony Nose Cemetery | Cemetery | 263 | Allen | 40 44 53 N | 084 03 31 W |
| Township of Amanda | Civil | 247 | Allen | 40 44 18 N | 084 16 48 W |
| Township of American | Civil | 251 | Allen | 40 45 59 N | 084 09 42 W |
| Township of Auglaize | Civil | 300 | Allen | 40 41 40 N | 083 56 00 W |
| Township of Bath | Civil | 274 | Allen | 40 45 45 N | 084 03 54 W |
| Township of Jackson | Civil | 279 | Allen | 40 46 33 N | 083 55 41 W |
| Township of Marion | Civil | 238 | Allen | 40 50 01 N | 084 19 02 W |
| Township of Monroe | Civil | 244 | Allen | 40 51 07 N | 084 03 35 W |
| Township of Perry | Civil | 284 | Allen | 40 41 52 N | 084 04 09 W |
| Township of Richland | Civil | 252 | Allen | 40 52 53 N | 083 54 47 W |
| Township of Shawnee | Civil | 256 | Allen | 40 41 44 N | 084 09 28 W |
| Township of Spencer | Civil | 251 | Allen | 40 43 11 N | 084 21 28 W |
| Township of Sugar Creek | Civil | 239 | Allen | 40 49 40 N | 084 10 19 W |
| Trinity Lutheran Church | Church | 244 | Allen | 40 47 18 N | 084 12 16 W |
| Trinity United Methodist Church | Church | 236 | Allen | 40 50 42 N | 084 20 16 W |
| Trinity United Methodist Church | Church | 252 | Allen | 40 42 34 N | 084 21 21 W |
| Trinity United Methodist Church | Church | 267 | Allen | 40 44 22 N | 084 06 29 W |
| Trinity Wesleyan Church | Church | 262 | Allen | 40 44 23 N | 084 05 58 W |
| Tussing Cemetery | Cemetery | 280 | Allen | 40 39 47 N | 084 02 43 W |
| Twin Lake Reservoir | Reservoir | 262 | Allen | 40 44 40 N | 084 05 07 W |
| Union Cemetery | Cemetery | 251 | Allen | 40 47 14 N | 084 07 36 W |
| Union Chapel | Church | 275 | Allen | 40 45 51 N | 084 00 51 W |
| Union Chapel Cemetery | Cemetery | 275 | Allen | 40 45 53 N | 084 00 57 W |
| United Church of God | Church | 264 | Allen | 40 43 49 N | 084 06 25 W |
| Unity of Lima Center | Church | 264 | Allen | 40 44 43 N | 084 07 45 W |
| Wallet Cemetery | Cemetery | 264 | Allen | 40 44 59 N | 084 03 06 W |
| Walnut Grove Cemetery | Cemetery | 237 | Allen | 40 49 48 N | 084 17 26 W |
| Ward Cemetery | Cemetery | 315 | Allen | 40 39 29 N | 083 57 24 W |
| Washington McKinley Elementary School | School | 267 | Allen | 40 43 54 N | 084 05 28 W |
| WCIT-AM (Lima) | Tower | 270 | Allen | 40 43 21 N | 084 05 04 W |
| West Cairo | Populated Place | 249 | Allen | 40 49 55 N | 084 04 52 W |
| West Cemetery | Cemetery | 245 | Allen | 40 49 53 N | 084 05 49 W |
| West Elm United Church of Christ | Church | 266 | Allen | 40 44 15 N | 084 08 10 W |
| West Junior High School | School | 266 | Allen | 40 44 55 N | 084 07 34 W |
| West Newton | Populated Place | 318 | Allen | 40 39 14 N | 083 53 34 W |
| West Newton Cemetery | Cemetery | 321 | Allen | 40 39 13 N | 083 53 54 W |
| West Newton Post Office (historical) | Post Office | 317 | Allen | 40 39 15 N | 083 53 30 W |
| West Point Cemetery | Cemetery | 277 | Allen | 40 48 41 N | 083 56 37 W |
| West Union Cemetery | Cemetery | 248 | Allen | 40 45 27 N | 084 21 51 W |
| Westgate Shopping Center | Locale | 259 | Allen | 40 45 02 N | 084 08 60 W |
| Westley Cemetery | Cemetery | 251 | Allen | 40 48 02 N | 084 07 43 W |
| Westminster | Locale | 297 | Allen | 40 42 57 N | 083 59 30 W |
| Westminster | Populated Place | 288 | Allen | 40 41 36 N | 083 58 49 W |
| Westminster Cemetery | Cemetery | 289 | Allen | 40 41 45 N | 083 58 46 W |
| Westminster Post Office (historical) | Post Office | 287 | Allen | 40 41 35 N | 083 58 50 W |
| Westwood Elementary School | School | 262 | Allen | 40 44 45 N | 084 08 53 W |
| WFSO-FM (Fort Shawnee) | Tower | 290 | Allen | 40 39 50 N | 084 05 07 W |
| WFSO-FM (Fort Shawnee) | Tower | 280 | Allen | 40 40 04 N | 084 01 41 W |
| Whittier Elementary School | School | 269 | Allen | 40 43 13 N | 084 06 01 W |
| Williams Cemetery | Cemetery | 260 | Allen | 40 49 57 N | 084 00 32 W |
| WIMA-AM (Lima) | Tower | 274 | Allen | 40 40 47 N | 084 06 34 W |
| WIMT-FM (Lima) | Tower | 263 | Allen | 40 38 03 N | 084 12 29 W |
| WLIO-TV (Lima) | Tower | 263 | Allen | 40 44 54 N | 084 07 55 W |
| WLSR-FM (Lima) | Tower | 270 | Allen | 40 43 21 N | 084 05 04 W |
| Woodlawn Baptist Church | Church | 268 | Allen | 40 43 50 N | 084 08 05 W |
| Woodlawn Cemetery | Cemetery | 261 | Allen | 40 50 21 N | 083 57 46 W |
| Woodlawn Cemetery | Cemetery | 261 | Allen | 40 43 39 N | 084 07 49 W |
| WTGN-FM (Lima) | Tower | 255 | Allen | 40 45 26 N | 084 08 12 W |
| WTLW-TV (Lima) | Tower | 253 | Allen | 40 45 47 N | 084 10 59 W |
| Yoder | Populated Place | 292 | Allen | 40 41 14 N | 084 04 16 W |
| Yoder Post Office (historical) | Post Office | 293 | Allen | 40 41 15 N | 084 04 15 W |