Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Forest City Fire Department | Building | 378 | Winnebago | 43 15 50 N | 093 38 05 W |
| Forest City Hall | Building | 391 | Winnebago | 43 15 57 N | 093 38 16 W |
| Forest City High School | School | 386 | Winnebago | 43 15 55 N | 093 38 56 W |
| Forest City Municipal Airport | Airport | 366 | Hancock | 43 14 05 N | 093 37 27 W |
| Forest City Municipal Library | Building | 384 | Winnebago | 43 15 57 N | 093 38 11 W |
| Forest City Police Department | Building | 390 | Winnebago | 43 15 46 N | 093 38 20 W |
| Forest City Post Office | Post Office | 391 | Winnebago | 43 15 57 N | 093 38 18 W |
| Forest City Regional Medical Center | Hospital | 388 | Winnebago | 43 16 15 N | 093 37 41 W |
| Forest Evangelical Lutheran Church | Church | 384 | Winnebago | 43 15 59 N | 093 38 38 W |
| Forest Grove Cemetery | Cemetery | 364 | Taylor | 40 37 31 N | 094 39 46 W |
| Forest Grove School | School | 220 | Scott | 41 35 22 N | 090 26 02 W |
| Forest Hill Cemetery | Cemetery | 391 | Adams | 41 06 05 N | 094 42 58 W |
| Forest Hill Cemetery | Cemetery | 298 | Jones | 42 03 07 N | 091 16 05 W |
| Forest Home | Locale | 265 | Poweshiek | 41 32 18 N | 092 36 39 W |
| Forest Home Cemetery | Cemetery | 217 | Henry | 40 57 06 N | 091 32 32 W |
| Forest Home Cemetery | Cemetery | 264 | Poweshiek | 41 32 16 N | 092 36 56 W |
| Forest Home Cemetery | Cemetery | 335 | Ringgold | 40 39 01 N | 094 23 08 W |
| Forest Home Cemetery | Cemetery | 377 | Winnebago | 43 20 08 N | 093 37 26 W |
| Forest Lake Camp | Locale | 242 | Wapello | 40 56 04 N | 092 22 57 W |
| Forest Lawn Memorial Garden (historical) | Cemetery | 381 | Cerro Gordo | 43 08 25 N | 093 25 16 W |
| Forest Mills Post Office (historical) | Post Office | 289 | Allamakee | 43 09 20 N | 091 27 26 W |
| Forest Mills United Methodist Church | Church | 360 | Allamakee | 43 05 05 N | 091 34 06 W |
| Forest Park | Park | 227 | Jefferson | 41 00 29 N | 091 57 06 W |
| Forest Park Mobile Home Court | Populated Place | 377 | Winnebago | 43 16 24 N | 093 38 09 W |
| Forest Park Museum | Building | 293 | Dallas | 41 49 34 N | 094 05 16 W |
| Forest Ridge Camp | Locale | 393 | Emmet | 43 18 43 N | 094 42 02 W |
| Forest View Trailer Court | Populated Place | 219 | Johnson | 41 41 05 N | 091 32 39 W |
| Forest Villa Resort | Locale | 309 | Delaware | 42 35 55 N | 091 32 01 W |
| Foresthome Post Office (historical) | Post Office | 265 | Poweshiek | 41 32 18 N | 092 36 39 W |
| Foreston | Locale | 363 | Howard | 43 29 07 N | 092 14 18 W |
| Foreston Bridge | Bridge | 356 | Howard | 43 29 09 N | 092 14 14 W |
| Foreston Cemetery | Cemetery | 376 | Howard | 43 28 46 N | 092 13 60 W |
| Foreston Post Office (historical) | Post Office | 363 | Howard | 43 29 07 N | 092 14 18 W |
| Forestry Greenhouse | Building | 279 | Story | 42 01 47 N | 093 38 27 W |
| Forestville | Populated Place | 311 | Delaware | 42 35 48 N | 091 31 43 W |
| Forestville Cemetery | Cemetery | 316 | Delaware | 42 35 60 N | 091 31 44 W |
| Forestville Post Office (historical) | Post Office | 311 | Delaware | 42 35 48 N | 091 31 43 W |
| Fork Creek | Stream | | Lee | 40 37 44 N | 091 17 58 W |
| Forker Building | Building | 279 | Story | 42 01 36 N | 093 38 26 W |
| Forneys Lake | Lake | 285 | Fremont | 40 51 15 N | 095 46 50 W |
| Forneys Lake State Wildlife Management Area | Park | 286 | Fremont | 40 51 13 N | 095 47 00 W |
| Forrest Avenue Park | Park | 289 | Bremer | 42 40 17 N | 092 20 15 W |
| Forrest Cemetery | Cemetery | 238 | Jefferson | 41 06 51 N | 092 10 47 W |
| Forrest R Chantry School | School | 328 | Mills | 41 00 27 N | 095 34 47 W |
| Forsyth | Populated Place | 380 | Emmet | 43 15 20 N | 094 28 23 W |
| Forsyth (historical) | Locale | 380 | Emmet | 43 15 20 N | 094 28 23 W |
| Forsyth Post Office (historical) | Post Office | 380 | Emmet | 43 15 20 N | 094 28 23 W |
| Fort Atkinson | Locale | 314 | Winneshiek | 43 08 43 N | 091 56 01 W |
| Fort Atkinson | Populated Place | 319 | Winneshiek | 43 08 36 N | 091 55 58 W |
| Fort Atkinson (historical) | Military (Historical) | 332 | Winneshiek | 43 08 44 N | 091 56 21 W |
| Fort Atkinson Bridge | Bridge | 309 | Winneshiek | 43 09 12 N | 091 55 44 W |
| Fort Atkinson City Park | Park | 310 | Winneshiek | 43 09 10 N | 091 55 51 W |
| Fort Atkinson Fire Department | Building | 319 | Winneshiek | 43 08 36 N | 091 55 58 W |
| Fort Atkinson Historical Marker | Park | 332 | Winneshiek | 43 08 44 N | 091 56 22 W |
| Fort Atkinson Post Office | Post Office | 319 | Winneshiek | 43 08 36 N | 091 55 58 W |
| Fort Atkinson Public Library | Building | 319 | Winneshiek | 43 08 36 N | 091 55 58 W |
| Fort Atkinson State Preserve | Forest | 331 | Winneshiek | 43 08 42 N | 091 56 24 W |
| Fort Barrick alias Fort John Historical Marker | Park | 277 | Bremer | 42 38 51 N | 092 27 48 W |
| Fort Defiance (historical) | Military (Historical) | 394 | Emmet | 43 24 04 N | 094 50 12 W |
| Fort Defiance and Monument Historical Marker | Park | 396 | Emmet | 43 24 11 N | 094 50 10 W |
| Fort Defiance State Park | Park | 443 | Emmet | 43 23 31 N | 094 51 57 W |
| Fort Des Moines | Populated Place | 285 | Polk | 41 31 13 N | 093 36 57 W |
| Fort Des Moines Cemetery | Cemetery | 261 | Polk | 41 31 00 N | 093 36 21 W |
| Fort Des Moines Church of Christ | Church | 287 | Polk | 41 31 36 N | 093 36 42 W |
| Fort Des Moines Open Bible Church | Church | 290 | Polk | 41 31 35 N | 093 37 48 W |
| Fort Des Moines Park | Park | 282 | Polk | 41 31 10 N | 093 36 21 W |
| Fort Des Moines Post Office (historical) | Post Office | 288 | Polk | 41 31 38 N | 093 36 57 W |
| Fort Des Moines Presbyterian Church | Church | 287 | Polk | 41 31 48 N | 093 36 57 W |
| Fort Des Moines School | School | 285 | Polk | 41 31 13 N | 093 36 57 W |
| Fort Des Moines United Methodist Church | Church | 292 | Polk | 41 31 43 N | 093 37 32 W |
| Fort Dodge | Locale | 312 | Webster | 42 30 02 N | 094 11 28 W |
| Fort Dodge | Populated Place | 340 | Webster | 42 29 51 N | 094 10 05 W |
| Fort Dodge (historical) | Military (Historical) | 330 | Webster | 42 30 21 N | 094 11 34 W |
| Fort Dodge Center Library | Building | 341 | Webster | 42 28 15 N | 094 12 16 W |
| Fort Dodge Church of Christ | Church | 343 | Webster | 42 32 05 N | 094 10 38 W |
| Fort Dodge Country Club | Locale | 341 | Webster | 42 30 17 N | 094 12 21 W |
| Fort Dodge Fire Department | Building | 341 | Webster | 42 30 22 N | 094 10 38 W |
| Fort Dodge Headache and Pain Clinic | Hospital | 341 | Webster | 42 30 31 N | 094 10 41 W |
| Fort Dodge Military Post Historical Marker | Park | 330 | Webster | 42 30 21 N | 094 11 35 W |
| Fort Dodge Municipal Airport | Airport | 340 | Webster | 42 33 05 N | 094 11 33 W |
| Fort Dodge Nature Trail | Trail | 341 | Webster | 42 29 19 N | 094 11 57 W |
| Fort Dodge Point | Cape | 426 | Dickinson | 43 22 33 N | 095 08 27 W |
| Fort Dodge Police Department | Building | 331 | Webster | 42 30 16 N | 094 11 17 W |
| Fort Dodge Post Office | Post Office | 331 | Webster | 42 30 10 N | 094 11 11 W |
| Fort Dodge Public Library | Building | 330 | Webster | 42 30 19 N | 094 11 31 W |
| Fort Dodge Senior High School | School | 339 | Webster | 42 30 53 N | 094 09 45 W |
| Fort Dodge Temple of Praise Church | Church | 341 | Webster | 42 30 38 N | 094 11 02 W |
| Fort Dodge Veterans Administration Clinic | Hospital | 340 | Webster | 42 28 19 N | 094 11 49 W |
| Fort Dodge Villa Care Center | Hospital | 339 | Webster | 42 30 56 N | 094 09 41 W |
| Fort John (historical) | Military (Historical) | 277 | Bremer | 42 38 51 N | 092 27 47 W |
| Fort Madison | Locale | 161 | Lee | 40 37 47 N | 091 18 53 W |
| Fort Madison | Populated Place | 161 | Lee | 40 37 47 N | 091 18 55 W |
| Fort Madison (historical) | Military (Historical) | 165 | Lee | 40 37 48 N | 091 18 15 W |
| Fort Madison Bridge | Bridge | 155 | Lee | 40 37 41 N | 091 17 50 W |
| Fort Madison Christian Church | Church | 168 | Lee | 40 37 36 N | 091 22 25 W |
| Fort Madison City Cemetery | Cemetery | 165 | Lee | 40 37 47 N | 091 19 25 W |
| Fort Madison City Hall | Building | 171 | Lee | 40 38 00 N | 091 18 43 W |
| Fort Madison Community Hospital | Hospital | 165 | Lee | 40 37 20 N | 091 22 41 W |
| Fort Madison Country Club | Locale | 209 | Lee | 40 38 25 N | 091 16 51 W |
| Fort Madison Eye Clinic | Hospital | 164 | Lee | 40 37 52 N | 091 18 40 W |
| Fort Madison Family Physicians Center | Hospital | 165 | Lee | 40 37 20 N | 091 22 41 W |
| Fort Madison Fire Station | Building | 162 | Lee | 40 37 36 N | 091 20 22 W |
| Fort Madison Foot Clinic | Hospital | 165 | Lee | 40 37 50 N | 091 20 17 W |
| Fort Madison Health Center | Hospital | 168 | Lee | 40 37 18 N | 091 21 59 W |
| Fort Madison Medical Clinic | Hospital | 165 | Lee | 40 37 20 N | 091 22 41 W |
| Fort Madison Middle School | School | 167 | Lee | 40 37 54 N | 091 19 52 W |
| Fort Madison Municipal Airport | Airport | 218 | Lee | 40 39 33 N | 091 19 37 W |
| Fort Madison Police Department | Building | 170 | Lee | 40 37 58 N | 091 18 44 W |
| Fort Madison Post Office | Post Office | 162 | Lee | 40 37 49 N | 091 18 58 W |
| Fort Madison Senior High School | School | 174 | Lee | 40 38 11 N | 091 20 01 W |