Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Earling | Locale | 397 | Shelby | 41 46 26 N | 095 25 01 W |
| Earling | Populated Place | 409 | Shelby | 41 46 32 N | 095 25 03 W |
| Earling Fire Hall | Building | 405 | Shelby | 41 46 31 N | 095 24 59 W |
| Earling Grain and Feed Elevator | Locale | 397 | Shelby | 41 46 26 N | 095 25 02 W |
| Earling Post Office | Post Office | 409 | Shelby | 41 46 32 N | 095 25 03 W |
| Earlville | Locale | 305 | Delaware | 42 28 51 N | 091 16 16 W |
| Earlville | Populated Place | 304 | Delaware | 42 28 54 N | 091 16 21 W |
| Earlville Elementary School | School | 310 | Delaware | 42 29 02 N | 091 16 33 W |
| Earlville Post Office | Post Office | 303 | Delaware | 42 28 54 N | 091 16 22 W |
| Earlville United Parish | Church | 304 | Delaware | 42 28 56 N | 091 16 17 W |
| Early | Populated Place | 410 | Sac | 42 27 41 N | 095 09 07 W |
| Early (historical) | Locale | 407 | Sac | 42 27 34 N | 095 09 08 W |
| Early Chapel | Church | 354 | Madison | 41 24 33 N | 094 09 25 W |
| Early Des Moines River Crossings Historical Marker | Park | 232 | Polk | 41 35 22 N | 093 37 04 W |
| Early Fire Hall | Building | 410 | Sac | 42 27 41 N | 095 09 07 W |
| Early Mansion | Building | 378 | Sac | 42 25 21 N | 094 59 29 W |
| Early Post Office | Post Office | 409 | Sac | 42 27 40 N | 095 09 09 W |
| Early Public Library | Building | 409 | Sac | 42 27 38 N | 095 09 06 W |
| Early Union Cemetery | Cemetery | 413 | Sac | 42 27 28 N | 095 08 34 W |
| Eash Cemetery | Cemetery | 224 | Johnson | 41 34 48 N | 091 39 08 W |
| Easley | Populated Place | 350 | Calhoun | 42 18 40 N | 094 23 58 W |
| Eason Elementary School | School | 311 | Dallas | 41 36 03 N | 093 50 03 W |
| Eason Family Burial Plot | Cemetery | 421 | Sioux | 42 55 00 N | 096 06 11 W |
| East Aldrich Creek | Stream | | Ida | 42 19 55 N | 095 37 43 W |
| East Amana | Populated Place | 230 | Iowa | 41 48 33 N | 091 51 04 W |
| East Bay | Bay | 427 | Dickinson | 43 28 38 N | 095 04 05 W |
| East Beaver Cemetery | Cemetery | 346 | Humboldt | 42 41 17 N | 094 06 24 W |
| East Beaver Creek | Stream | | Boone | 41 59 14 N | 094 06 32 W |
| East Beaver School (historical) | School | 284 | Dallas | 41 47 60 N | 093 52 59 W |
| East Bethel Cemetery | Cemetery | 268 | Monroe | 41 01 36 N | 092 38 58 W |
| East Big Creek | Stream | | Linn | 42 03 04 N | 091 27 50 W |
| East Bluff | Cliff | 271 | Benton | 42 09 43 N | 091 58 60 W |
| East Boyer River | Stream | | Crawford | 42 00 43 N | 095 22 18 W |
| East Branch Beaverdam Creek | Stream | | Cerro Gordo | 42 56 21 N | 093 12 31 W |
| East Branch Blue Creek | Stream | | Linn | 42 11 24 N | 091 49 13 W |
| East Branch Boone River | Stream | | Wright | 42 54 16 N | 093 52 43 W |
| East Branch Buckley Creek | Stream | | Mahaska | 41 29 33 N | 092 49 32 W |
| East Branch Buffalo Creek | Stream | | Buchanan | 42 33 37 N | 091 45 25 W |
| East Branch Iowa River | Stream | | Wright | 42 51 38 N | 093 36 50 W |
| East Branch Keg Creek | Stream | | Harrison | 41 31 00 N | 095 31 44 W |
| East Branch Lick Creek | Stream | | Jefferson | 40 55 07 N | 092 03 23 W |
| East Branch Middle Platte River | Stream | | Union | 40 57 08 N | 094 25 04 W |
| East Branch Panther Creek | Stream | | Dallas | 41 39 18 N | 094 06 41 W |
| East Branch Pine Creek | Stream | | Buchanan | 42 32 32 N | 091 49 18 W |
| East Branch Salt Creek | Stream | | Tama | 42 00 40 N | 092 21 03 W |
| East Branch Spring Creek | Stream | | Black Hawk | 42 21 43 N | 092 05 32 W |
| East Branch Wapsinonoc Creek | Stream | | Muscatine | 41 35 02 N | 091 14 51 W |
| East Branch West Nishnabotna River | Stream | | Pottawattamie | 41 26 43 N | 095 21 23 W |
| East Branch Wolf Creek | Stream | | Woodbury | 42 20 51 N | 096 01 44 W |
| East Brooklyn Post Office (historical) | Post Office | 259 | Poweshiek | 41 44 30 N | 092 25 11 W |
| East Buchanan Community School | School | 271 | Buchanan | 42 23 44 N | 091 45 32 W |
| East Buchanan High School | School | 325 | Buchanan | 42 28 33 N | 091 44 15 W |
| East Buck Creek | Stream | | Poweshiek | 41 33 15 N | 092 37 59 W |
| East Burr Oak Creek | Stream | | Jasper | 41 46 24 N | 092 55 34 W |
| East Buttrick Creek | Stream | | Greene | 42 02 60 N | 094 16 52 W |
| East Campus Apartments | Building | 448 | Sioux | 43 05 01 N | 096 09 48 W |
| East Campus Residence Halls | Building | 311 | Poweshiek | 41 45 03 N | 092 43 06 W |
| East Canton | Populated Place | 228 | Jackson | 42 09 50 N | 090 53 46 W |
| East Cedar Creek | Stream | | Calhoun | 42 17 48 N | 094 30 06 W |
| East Cemetery | Cemetery | 221 | Keokuk | 41 15 30 N | 092 11 31 W |
| East Central Middle School | School | 180 | Jackson | 42 04 05 N | 090 10 21 W |
| East Central School | School | 250 | Jackson | 42 02 48 N | 090 18 35 W |
| East Clermont Church | Church | 354 | Clayton | 42 59 46 N | 091 35 28 W |
| East Clermont Lutheran Cemetery | Cemetery | 357 | Clayton | 42 59 49 N | 091 35 31 W |
| East Creston | Populated Place | 390 | Union | 41 03 30 N | 094 20 09 W |
| East Des Moines | Populated Place | 240 | Polk | 41 34 15 N | 093 33 09 W |
| East Des Moines Access Public Hunting Area | Area | 365 | Emmet | 43 21 35 N | 094 27 37 W |
| East Des Moines Post Office (historical) | Post Office | 240 | Polk | 41 34 15 N | 093 33 09 W |
| East Elementary School | School | 437 | O'Brien | 43 10 60 N | 095 50 24 W |
| East Elementary School | School | 280 | Warren | 41 28 22 N | 093 40 39 W |
| East End Christian Church | Church | 200 | Wapello | 41 00 30 N | 092 23 29 W |
| East End Pentecostal Church | Church | 198 | Wapello | 41 00 20 N | 092 22 51 W |
| East End Presbyterian Church | Church | 239 | Wapello | 41 01 08 N | 092 23 43 W |
| East End Shopping Center | Locale | 259 | Linn | 42 02 04 N | 091 34 31 W |
| East Fairview Cemetery | Cemetery | 387 | Taylor | 40 52 44 N | 094 34 13 W |
| East Field | Airport | 291 | Poweshiek | 41 34 55 N | 092 27 41 W |
| East Fork Battle Creek | Stream | | Ida | 42 23 50 N | 095 34 29 W |
| East Fork Crooked Creek | Stream | | Washington | 41 12 02 N | 091 36 32 W |
| East Fork Des Moines River | Stream | | Humboldt | 42 40 38 N | 094 11 54 W |
| East Fork East Nodaway River | Stream | | Adams | 41 04 30 N | 094 32 01 W |
| East Fork Grand River | Stream | | Ringgold | 40 35 37 N | 094 12 53 W |
| East Fork Hardin Creek | Stream | | Greene | 42 02 57 N | 094 22 13 W |
| East Fork Medicine Creek | Stream | | Wayne | 40 36 10 N | 093 19 57 W |
| East Fork One Hundred and Two River | Stream | | Taylor | 40 33 29 N | 094 49 27 W |
| East Fork Sabula Slough | Stream | | Jackson | 42 05 52 N | 090 10 23 W |
| East Fork Wapsipinicon River | Stream | | Bremer | 42 49 20 N | 092 14 51 W |
| East Fork Wolf Creek | Stream | | Woodbury | 42 18 53 N | 096 00 36 W |
| East Freeport Cemetery | Cemetery | 342 | Winneshiek | 43 17 60 N | 091 43 31 W |
| East Friesland Cemetery | Cemetery | 336 | Grundy | 42 29 09 N | 093 00 18 W |
| East Friesland Church | Church | 336 | Grundy | 42 29 08 N | 093 00 16 W |
| East Gate Mall | Building | 251 | Benton | 41 53 55 N | 092 15 56 W |
| East Glenwood Cemetery | Cemetery | 370 | Winneshiek | 43 16 36 N | 091 36 54 W |
| East Goose Lake | Lake | 215 | Jones | 41 58 26 N | 090 56 11 W |
| East Grand Creek | Stream | | Jasper | 41 43 40 N | 093 08 53 W |
| East Greene Community School | School | 314 | Greene | 42 01 46 N | 094 14 12 W |
| East Greene Elementary School | School | 327 | Greene | 41 56 02 N | 094 12 05 W |
| East Grove Cemetery | Cemetery | 207 | Henry | 40 50 00 N | 091 33 11 W |
| East Grove Post Office (historical) | Post Office | 208 | Henry | 40 49 30 N | 091 33 01 W |
| East Gymnasium and Pool | Building | 286 | Black Hawk | 42 30 57 N | 092 27 33 W |
| East Hall | Building | 284 | Story | 42 01 34 N | 093 38 36 W |
| East Hampton Post Office (historical) | Post Office | 427 | Cherokee | 42 35 40 N | 095 35 11 W |
| East High School | School | 262 | Black Hawk | 42 30 07 N | 092 19 45 W |
| East High School | School | 273 | Polk | 41 35 49 N | 093 36 00 W |
| East High School | School | 383 | Woodbury | 42 28 22 N | 096 21 22 W |
| East Hill Catholic Cemeetery | Cemetery | 294 | Jackson | 42 17 40 N | 090 36 57 W |
| East Home Prairie Cemetery | Cemetery | 232 | Van Buren | 40 40 30 N | 092 02 01 W |
| East Hottes Lake | Lake | 427 | Dickinson | 43 28 53 N | 095 08 01 W |
| East Indian Creek | Stream | | Linn | 42 06 32 N | 091 33 46 W |
| East Indian Creek | Stream | | Story | 41 55 15 N | 093 25 11 W |
| East Indian Creek Bridge | Bridge | 277 | Story | 41 58 31 N | 093 23 13 W |