Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Engels Creek | Stream | | O'Brien | 43 12 20 N | 095 49 21 W |
| Engineering Annex | Building | 293 | Story | 42 01 37 N | 093 39 03 W |
| Engineering Extension Building | Building | 281 | Story | 42 01 55 N | 093 38 24 W |
| Engineering Research Facility | Building | 200 | Johnson | 41 39 26 N | 091 32 14 W |
| Engineering Research Institute | Building | 293 | Story | 42 01 37 N | 093 39 03 W |
| Engledow Cemetery | Cemetery | 272 | Benton | 42 16 07 N | 092 07 59 W |
| English - Philosophy Building | Building | 198 | Johnson | 41 39 39 N | 091 32 24 W |
| English Bench Cemetery | Cemetery | 203 | Allamakee | 43 25 30 N | 091 28 01 W |
| English Cemetery | Cemetery | 279 | Jackson | 42 08 50 N | 090 52 01 W |
| English Creek | Stream | | Marion | 41 19 42 N | 092 55 17 W |
| English Creek | Stream | | Poweshiek | 41 31 41 N | 092 41 08 W |
| English Lutheran Church | Church | 450 | Lyon | 43 27 13 N | 096 26 03 W |
| English Office Building | Building | 293 | Story | 42 01 33 N | 093 38 55 W |
| English River | Stream | | Washington | 41 29 15 N | 091 30 07 W |
| English River Wildlife Area | Park | 211 | Washington | 41 30 02 N | 091 55 36 W |
| English Settlement | Locale | 250 | Marion | 41 18 23 N | 092 58 33 W |
| English Settlement Post Office (historical) | Post Office | 215 | Marion | 41 20 58 N | 092 56 56 W |
| English Valley High School | School | 257 | Iowa | 41 30 55 N | 092 05 17 W |
| English Valley Nursing Care Center | Hospital | 252 | Iowa | 41 31 04 N | 092 04 38 W |
| English Valleys Elementary School | School | 253 | Iowa | 41 30 49 N | 092 04 48 W |
| Enix Cemetery | Cemetery | 292 | Monroe | 40 57 12 N | 092 48 43 W |
| Ennis County Park | Park | 234 | Linn | 41 53 55 N | 091 29 01 W |
| Ennoble Manor Care Center | Hospital | 249 | Dubuque | 42 30 22 N | 090 43 10 W |
| Eno Cemetery | Cemetery | 334 | Clayton | 42 59 35 N | 091 28 11 W |
| Enod Post Office (historical) | Post Office | 343 | Taylor | 40 35 35 N | 094 39 41 W |
| Enon Post Office (historical) | Post Office | 252 | Monroe | 40 54 49 N | 092 44 39 W |
| Ensign Creek | Stream | | Clayton | 42 45 16 N | 091 33 59 W |
| Enslow Cemetery | Cemetery | 220 | Lee | 40 45 18 N | 091 24 05 W |
| Enterprise | Locale | 257 | Black Hawk | 42 21 21 N | 092 09 16 W |
| Enterprise | Locale | 305 | Polk | 41 43 55 N | 093 31 49 W |
| Enterprise | Populated Place | 305 | Polk | 41 43 55 N | 093 31 49 W |
| Enterprise Cemetery | Cemetery | 289 | Polk | 41 42 30 N | 093 33 01 W |
| Enterprise Post Office (historical) | Post Office | 277 | Black Hawk | 42 21 13 N | 092 08 31 W |
| Enterprise Post Office (historical) | Post Office | 305 | Polk | 41 43 55 N | 093 31 49 W |
| Environmental Educational Center | Building | 202 | Scott | 41 32 55 N | 090 28 12 W |
| Ephesus Post Office (historical) | Post Office | 303 | Dallas | 41 43 50 N | 094 09 01 W |
| Epiphany Episcopal Church | Church | 305 | Appanoose | 40 43 43 N | 092 52 27 W |
| Episcopal Church | Church | 329 | Hamilton | 42 27 44 N | 093 49 55 W |
| Episcopal Parish of Ames | Church | 287 | Story | 42 01 20 N | 093 38 53 W |
| Episcopal University Chaplaincy | Church | 216 | Johnson | 41 39 50 N | 091 32 06 W |
| Epley | Locale | 228 | Linn | 42 00 40 N | 091 41 56 W |
| Eppard Cemetery | Cemetery | 352 | Madison | 41 23 31 N | 094 10 19 W |
| Epping Creek | Stream | | O'Brien | 43 10 34 N | 095 30 43 W |
| Epworth | Locale | 317 | Dubuque | 42 26 52 N | 090 55 48 W |
| Epworth | Populated Place | 318 | Dubuque | 42 26 42 N | 090 55 55 W |
| Epworth Cemetery | Cemetery | 313 | Dubuque | 42 25 22 N | 090 55 54 W |
| Epworth Elementary School | School | 318 | Dubuque | 42 26 46 N | 090 56 09 W |
| Epworth Police Department | Building | 321 | Dubuque | 42 26 40 N | 090 55 46 W |
| Epworth Post Office | Post Office | 318 | Dubuque | 42 26 48 N | 090 55 54 W |
| Epworth United Methodist Chuch | Church | 318 | Dubuque | 42 26 41 N | 090 55 53 W |
| Epworth United Methodist Church | Church | 271 | Polk | 41 37 39 N | 093 37 24 W |
| Epworth United Methodist Church | Church | 299 | Pottawattamie | 41 15 48 N | 095 52 53 W |
| Epworth United Methodist Church | Church | 341 | Webster | 42 29 34 N | 094 10 11 W |
| Eranistan | Locale | 374 | Cass | 41 18 37 N | 095 09 05 W |
| Erastus Post Office (historical) | Post Office | 385 | Guthrie | 41 45 55 N | 094 38 52 W |
| Eratus | Locale | 357 | Guthrie | 41 48 15 N | 094 39 59 W |
| Erdmann Trailer Court | Populated Place | 376 | Plymouth | 42 47 39 N | 096 09 56 W |
| Erhardt Cemetery | Cemetery | 315 | Clayton | 42 49 30 N | 091 28 31 W |
| Erickson Park | Park | 317 | Story | 42 10 02 N | 093 29 36 W |
| Erickson Prairie | Area | 387 | Montgomery | 40 57 40 N | 095 03 41 W |
| Erickson Spring Branch | Stream | | Allamakee | 43 17 49 N | 091 16 42 W |
| Ericson | Populated Place | 343 | Boone | 42 01 43 N | 093 47 47 W |
| Ericson Public Library | Building | 343 | Boone | 42 03 47 N | 093 52 59 W |
| Erie Post Office (historical) | Post Office | 445 | O'Brien | 42 55 25 N | 095 33 29 W |
| Erin Post Office (historical) | Post Office | 291 | Buchanan | 42 22 10 N | 091 36 01 W |
| Ernest Post Office (historical) | Post Office | 411 | Lyon | 43 19 53 N | 096 05 09 W |
| Ernie Post Office (historical) | Post Office | 326 | Floyd | 43 05 25 N | 092 44 31 W |
| Erskine School | School | 249 | Linn | 41 58 49 N | 091 36 56 W |
| Esbeck Field | Airport | 311 | Tama | 41 52 32 N | 092 45 03 W |
| Esgate Cemetery | Cemetery | 246 | Jackson | 42 07 45 N | 090 42 51 W |
| Eslinger Cemetery | Cemetery | 283 | Monroe | 40 57 04 N | 092 43 08 W |
| Esmay Slough | Stream | | Jackson | 42 05 19 N | 090 11 19 W |
| Essex | Locale | 302 | Page | 40 49 59 N | 095 18 34 W |
| Essex | Populated Place | 302 | Page | 40 50 01 N | 095 18 30 W |
| Essex Cemetery | Cemetery | 329 | Page | 40 50 09 N | 095 16 56 W |
| Essex City Hall | Building | 303 | Page | 40 49 60 N | 095 18 27 W |
| Essex Elevator Incorporated Elevator | Locale | 302 | Page | 40 50 09 N | 095 18 27 W |
| Essex Fire Department | Building | 303 | Page | 40 49 60 N | 095 18 27 W |
| Essex Golf and Recreation | Locale | 340 | Page | 40 50 30 N | 095 20 11 W |
| Essex Junior-Senior High School | School | 302 | Page | 40 49 48 N | 095 18 32 W |
| Essex Medical Clinic | Hospital | 303 | Page | 40 50 01 N | 095 18 23 W |
| Essex Police Department | Building | 303 | Page | 40 49 60 N | 095 18 27 W |
| Essex Post Office | Post Office | 304 | Page | 40 49 60 N | 095 18 17 W |
| Essex Public Library | Building | 303 | Page | 40 50 01 N | 095 18 22 W |
| Estates West | Populated Place | 337 | Woodbury | 42 24 24 N | 096 21 53 W |
| Estella Post Office (historical) | Post Office | 336 | Ringgold | 40 42 30 N | 094 21 31 W |
| Estelle Siebens Science Center | Building | 433 | Buena Vista | 42 38 28 N | 095 12 37 W |
| Estes Cemetery | Cemetery | 360 | Mills | 40 56 33 N | 095 42 30 W |
| Estes Park | Park | 341 | Hardin | 42 31 15 N | 093 15 53 W |
| Estes School | Locale | 367 | Mills | 40 56 30 N | 095 42 20 W |
| Estherville | Locale | 393 | Emmet | 43 24 05 N | 094 50 21 W |
| Estherville | Populated Place | 395 | Emmet | 43 24 06 N | 094 49 58 W |
| Estherville Beach | Beach | 427 | Dickinson | 43 25 13 N | 095 10 40 W |
| Estherville Community Christian School | School | 443 | Emmet | 43 24 51 N | 094 52 28 W |
| Estherville Firemens Hall | Building | 394 | Emmet | 43 24 05 N | 094 50 18 W |
| Estherville Golf and Country Club | Locale | 442 | Emmet | 43 24 50 N | 094 52 28 W |
| Estherville Lincoln Central High School | School | 402 | Emmet | 43 24 05 N | 094 49 26 W |
| Estherville Lincoln Central Middle School | School | 395 | Emmet | 43 24 22 N | 094 50 16 W |
| Estherville Lutheran Cemetery | Cemetery | 409 | Emmet | 43 25 47 N | 094 49 34 W |
| Estherville Lutheran Church | Church | 396 | Emmet | 43 24 15 N | 094 50 01 W |
| Estherville Medical Clinic | Hospital | 402 | Emmet | 43 24 40 N | 094 50 00 W |
| Estherville Meteorite Historical Marker | Park | 411 | Emmet | 43 26 00 N | 094 49 11 W |
| Estherville Municipal Airport | Airport | 401 | Emmet | 43 24 26 N | 094 44 47 W |
| Estherville Post Office | Post Office | 396 | Emmet | 43 24 15 N | 094 50 11 W |
| Estherville Public Library | Building | 396 | Emmet | 43 24 09 N | 094 50 10 W |
| Estle Cemetery | Cemetery | 200 | Louisa | 41 19 40 N | 091 18 01 W |
| Eternal Life Church | Church | 333 | Boone | 41 58 04 N | 093 49 08 W |
| Ethiopian Evangelical Christian Church | Church | 278 | Black Hawk | 42 30 50 N | 092 27 20 W |
| Etter Creek | Stream | | Chickasaw | 42 54 45 N | 092 20 12 W |
| Euclid | Populated Place | 307 | Harrison | 41 32 38 N | 095 51 39 W |