Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| George M Verity Riverboat Museum | Building | 150 | Lee | 40 23 25 N | 091 22 47 W |
| George O Morris Park | Park | 178 | Clinton | 41 50 04 N | 090 13 01 W |
| George Perkins Historical Marker | Park | 216 | Lee | 40 43 32 N | 091 39 41 W |
| George Post Office | Post Office | 420 | Lyon | 43 20 38 N | 096 00 06 W |
| George Public Library | Building | 421 | Lyon | 43 20 42 N | 096 00 10 W |
| George Washington Carver Memorial Park | Park | 342 | Madison | 41 20 04 N | 094 00 46 W |
| George Washington Memorial Forest Historical Marker | Park | 378 | Sac | 42 17 60 N | 095 02 59 W |
| George Washington Tree Historical Marker | Park | 232 | Washington | 41 17 57 N | 091 41 33 W |
| George Wyth House and Viking Pump Museum | Building | 268 | Black Hawk | 42 32 09 N | 092 26 59 W |
| George Wyth Lake | Reservoir | 259 | Black Hawk | 42 31 58 N | 092 23 56 W |
| George Wyth Memorial State Park | Cemetery | 259 | Black Hawk | 42 31 60 N | 092 24 44 W |
| Georgetown | Populated Place | 298 | Monroe | 41 00 46 N | 092 57 19 W |
| Georgetown (historical) | Locale | 296 | Monroe | 41 01 14 N | 092 55 01 W |
| Georgetown Cemetery | Cemetery | 292 | Monroe | 41 01 20 N | 092 58 31 W |
| Georgetown Post Office (historical) | Post Office | 299 | Monroe | 41 00 50 N | 092 57 21 W |
| Georgetown Rest Area | Locale | 290 | Monroe | 41 00 42 N | 092 57 31 W |
| Georgia L Hanford MacNider Park | Park | 352 | Cerro Gordo | 43 07 45 N | 093 11 41 W |
| Gerard Hall | Building | 278 | Black Hawk | 42 31 47 N | 092 20 23 W |
| Gerbigs Woods | Park | 360 | Mitchell | 43 24 53 N | 092 45 56 W |
| Gere Creek | Stream | | Cherokee | 42 51 04 N | 095 37 13 W |
| Gerholdt Cemetery | Cemetery | 286 | Black Hawk | 42 36 03 N | 092 31 08 W |
| Gerled | Locale | 351 | Kossuth | 43 23 05 N | 094 11 16 W |
| Gerled | Populated Place | 354 | Kossuth | 43 22 60 N | 094 11 16 W |
| Gerled Post Office (historical) | Post Office | 354 | Kossuth | 43 22 60 N | 094 11 16 W |
| German Catholic Cemetery | Cemetery | 295 | Buchanan | 42 28 30 N | 091 52 21 W |
| German Cemetery | Cemetery | 336 | Greene | 41 54 49 N | 094 22 41 W |
| German City Cemetery | Cemetery | 339 | Woodbury | 42 16 11 N | 096 02 53 W |
| German City Church | Church | 345 | Woodbury | 42 16 10 N | 096 02 52 W |
| German City Post Office (historical) | Post Office | 338 | Woodbury | 42 16 05 N | 096 02 46 W |
| German Creek | Stream | | Keokuk | 41 17 29 N | 092 07 46 W |
| German Evangelical Lutheran Emanuel Cemetery | Cemetery | 261 | Iowa | 41 40 50 N | 091 54 57 W |
| German Hollow | Valley | | Fayette | 42 46 39 N | 091 36 10 W |
| German Lutheran Cemetery | Cemetery | 222 | Jefferson | 41 01 29 N | 091 45 39 W |
| German Lutheran Cemetery | Cemetery | 354 | Kossuth | 43 22 13 N | 094 03 51 W |
| German Lutheran Cemetery | Cemetery | 309 | Madison | 41 28 30 N | 093 57 19 W |
| German Methodist Cemetery | Cemetery | 219 | Jefferson | 41 06 17 N | 091 44 46 W |
| German Methodist Cemetery | Cemetery | 428 | Sac | 42 30 15 N | 095 14 54 W |
| German Methodist Cemetery | Cemetery | 344 | Winneshiek | 43 17 57 N | 092 02 31 W |
| German Methodist Episcopal Cemetery | Cemetery | 267 | Iowa | 41 34 30 N | 092 16 01 W |
| German Post Office (historical) | Post Office | 375 | Hancock | 43 02 17 N | 093 40 30 W |
| German Society Methodist Cemetery | Cemetery | 290 | Jasper | 41 48 45 N | 092 58 31 W |
| German Township Cemetery | Cemetery | 334 | Grundy | 42 29 59 N | 093 00 36 W |
| German Township Cemetery | Cemetery | 357 | Kossuth | 43 16 13 N | 094 00 26 W |
| German Township Cemetery | Cemetery | 360 | Kossuth | 43 16 11 N | 094 04 03 W |
| German Valley | Populated Place | 352 | Kossuth | 43 16 12 N | 094 01 46 W |
| German Valley Post Office (historical) | Post Office | 352 | Kossuth | 43 16 12 N | 094 01 46 W |
| Germantown | Populated Place | 434 | O'Brien | 42 57 12 N | 095 46 51 W |
| Germantown Post Office (historical) | Post Office | 434 | O'Brien | 42 57 12 N | 095 46 51 W |
| Germanville | Populated Place | 209 | Jefferson | 41 06 15 N | 091 46 10 W |
| Germanville Catholic Cemetery | Cemetery | 218 | Jefferson | 41 06 32 N | 091 46 24 W |
| Germanville Post Office (historical) | Post Office | 211 | Jefferson | 41 06 13 N | 091 45 58 W |
| Gessford | Locale | 245 | Cedar | 41 49 13 N | 091 05 01 W |
| Gethman Cemetery | Cemetery | 310 | Tama | 42 11 22 N | 092 40 15 W |
| Gethsemane Cemetery | Cemetery | 232 | Allamakee | 43 21 42 N | 091 14 50 W |
| Gethsemane Chapel | Church | 221 | Allamakee | 43 21 41 N | 091 14 47 W |
| Gethsemane Church | Church | 201 | Scott | 41 33 23 N | 090 32 19 W |
| Gethsemane lutheran Church | Church | 352 | Woodbury | 42 30 28 N | 096 25 43 W |
| Gethsemane Presbyterian Church | Church | 298 | Pottawattamie | 41 13 13 N | 095 51 48 W |
| Gethsemans Cemetery | Cemetery | 213 | Lee | 40 38 42 N | 091 19 12 W |
| Gettinger School | School | 316 | Lucas | 41 03 13 N | 093 23 03 W |
| Ghost Hollow | Valley | | Lee | 40 32 49 N | 091 36 37 W |
| Giard | Populated Place | 342 | Clayton | 43 00 20 N | 091 17 21 W |
| Giard Cemetery | Cemetery | 350 | Clayton | 42 59 36 N | 091 18 29 W |
| Giard Post Office (historical) | Post Office | 342 | Clayton | 43 00 20 N | 091 17 21 W |
| Giard Station (historical) | Populated Place | 247 | Clayton | 43 02 05 N | 091 16 04 W |
| Giard Townhall | Building | 335 | Clayton | 43 00 37 N | 091 16 10 W |
| Giard Tract State Historical Marker | Park | 201 | Clayton | 43 02 38 N | 091 10 45 W |
| Giard United Methodist Church | Church | 346 | Clayton | 43 00 18 N | 091 17 24 W |
| Gibbons Cemetery | Cemetery | 256 | Marion | 41 27 30 N | 093 03 01 W |
| Gibbsville | Populated Place | 290 | Dallas | 41 48 03 N | 093 49 26 W |
| Gibraltar Post Office (historical) | Post Office | 415 | Lyon | 43 27 00 N | 096 35 03 W |
| Gibson | Populated Place | 273 | Keokuk | 41 28 52 N | 092 23 37 W |
| Gibson (historical) | Locale | 272 | Keokuk | 41 28 48 N | 092 23 36 W |
| Gibson Bend | Bend | 290 | Pottawattamie | 41 11 15 N | 095 55 15 W |
| Gibson Cemetery | Cemetery | 299 | Dallas | 41 36 38 N | 094 02 50 W |
| Gibson Elevator | Locale | 273 | Keokuk | 41 28 52 N | 092 23 37 W |
| Gibson First Presbyterian Church | Church | 273 | Keokuk | 41 28 52 N | 092 23 37 W |
| Gibson Park | Park | 307 | Floyd | 43 04 02 N | 092 40 22 W |
| Gibson Post Office | Post Office | 273 | Keokuk | 41 28 52 N | 092 23 37 W |
| Gibson Recreation Area | Park | 174 | Henry | 40 55 30 N | 091 40 21 W |
| Gideon Ford Home Site Historical Marker | Park | 253 | Jones | 42 06 30 N | 091 17 07 W |
| Giffin Fields | Park | 329 | Madison | 41 20 45 N | 094 00 37 W |
| Gifford | Locale | 289 | Hardin | 42 17 28 N | 093 05 26 W |
| Gifford | Populated Place | 288 | Hardin | 42 17 18 N | 093 05 26 W |
| Gifford Cemetery | Cemetery | 276 | Jasper | 41 31 08 N | 093 05 18 W |
| Gifford Post Office (historical) | Post Office | 288 | Hardin | 42 17 18 N | 093 05 26 W |
| Gifford United Methodist Church | Church | 336 | Hardin | 42 31 08 N | 093 17 25 W |
| Gift of Life Ministries | Church | 256 | Black Hawk | 42 29 24 N | 092 18 56 W |
| Gilbert | Locale | 303 | Story | 42 06 32 N | 093 38 56 W |
| Gilbert | Populated Place | 302 | Story | 42 06 25 N | 093 38 59 W |
| Gilbert Cemetery | Cemetery | 201 | Muscatine | 41 27 04 N | 091 00 44 W |
| Gilbert Cemetery | Cemetery | 305 | Story | 42 06 50 N | 093 38 25 W |
| Gilbert Cemetery | Cemetery | 204 | Van Buren | 40 47 30 N | 091 58 41 W |
| Gilbert City Hall | Building | 302 | Story | 42 06 28 N | 093 38 57 W |
| Gilbert Elementary School | School | 305 | Story | 42 06 25 N | 093 38 29 W |
| Gilbert Evangelical Free Church | Church | 301 | Story | 42 06 25 N | 093 39 03 W |
| Gilbert Grain Elevator | Locale | 229 | Van Buren | 40 51 25 N | 091 50 03 W |
| Gilbert James Wildlife Area | Park | 426 | Clay | 42 55 30 N | 095 11 39 W |
| Gilbert Junior-Senior High School | School | 304 | Story | 42 06 25 N | 093 38 28 W |
| Gilbert Lutheran Church | Church | 304 | Story | 42 06 25 N | 093 38 26 W |
| Gilbert Park | Park | 427 | Dickinson | 43 26 06 N | 095 06 10 W |
| Gilbert Post Office | Post Office | 302 | Story | 42 06 28 N | 093 38 57 W |
| Gilbert Post Office (historical) | Post Office | 174 | Scott | 41 31 28 N | 090 30 56 W |
| Gilbertson Conservation Education Area | Park | 244 | Fayette | 42 57 20 N | 091 37 01 W |
| Gilbertville | Populated Place | 258 | Black Hawk | 42 24 58 N | 092 12 54 W |
| Gilbertville Fire Department | Building | 260 | Black Hawk | 42 25 02 N | 092 12 54 W |
| Gilbertville Police Department | Building | 260 | Black Hawk | 42 25 02 N | 092 12 54 W |
| Gilbertville Post Office | Post Office | 259 | Black Hawk | 42 24 60 N | 092 12 51 W |
| Gilbertville Town Hall | Building | 259 | Black Hawk | 42 24 60 N | 092 12 54 W |
| Gilchrist Hall | Building | 278 | Black Hawk | 42 30 45 N | 092 27 34 W |