Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Edwards Cemetery | Cemetery | 198 | Louisa | 41 04 35 N | 091 03 37 W |
| Edwards Church | Church | 209 | Scott | 41 33 27 N | 090 32 31 W |
| Edwards City Park | Park | 264 | Marion | 41 19 50 N | 093 07 06 W |
| Edwards County Park | Park | 440 | Audubon | 41 43 43 N | 095 00 49 W |
| Edwards Post Office (historical) | Post Office | 282 | Black Hawk | 42 34 13 N | 092 15 33 W |
| Edwards School | School | 308 | Story | 42 01 33 N | 093 40 07 W |
| Edwin P Neubauer Park | Park | 183 | Clinton | 41 50 21 N | 090 12 43 W |
| Eells Plot | Cemetery | 398 | Allamakee | 43 16 30 N | 091 31 01 W |
| Efferding Cemetery | Cemetery | 222 | Jackson | 42 20 35 N | 090 28 15 W |
| Effigy Mounds National Monument | Park | 187 | Clayton | 42 56 26 N | 091 10 00 W |
| Efner Academic Hall | Building | 250 | Wapello | 41 02 42 N | 092 23 41 W |
| Egan | Populated Place | 348 | Allamakee | 43 09 24 N | 091 17 22 W |
| Egan Post Office (historical) | Post Office | 348 | Allamakee | 43 09 24 N | 091 17 22 W |
| Egbers Family Plot | Cemetery | 338 | Hardin | 42 28 54 N | 093 02 49 W |
| Egge Cemetery | Cemetery | 330 | Winneshiek | 43 28 06 N | 091 39 37 W |
| Eggers Hollow | Valley | | Jackson | 42 07 52 N | 090 21 41 W |
| Eggleston Farm Cemetery | Cemetery | 354 | Chickasaw | 43 05 30 N | 092 21 01 W |
| Eggleston Grove School | School | 330 | Clarke | 41 00 07 N | 093 41 31 W |
| Egralharve | Populated Place | 430 | Dickinson | 43 24 08 N | 095 10 23 W |
| Egralharve Beach | Beach | 426 | Dickinson | 43 24 30 N | 095 10 48 W |
| Egypt | Locale | 287 | Mills | 40 54 25 N | 095 48 16 W |
| Egypt Cemetery | Cemetery | 208 | Van Buren | 40 40 40 N | 092 06 41 W |
| Egypt School | School | 270 | Monroe | 41 06 37 N | 092 51 30 W |
| Ehler | Populated Place | 296 | Delaware | 42 18 37 N | 091 30 46 W |
| Ehler (historical) | Locale | 296 | Delaware | 42 18 37 N | 091 30 46 W |
| Ehler Post Office (historical) | Post Office | 296 | Delaware | 42 18 37 N | 091 30 46 W |
| Eicher Cemetery | Cemetery | 219 | Washington | 41 10 42 N | 091 37 35 W |
| Eicher Emmanuel Church | Church | 219 | Washington | 41 10 42 N | 091 37 32 W |
| Eide Post Office (historical) | Post Office | 295 | Winneshiek | 43 22 45 N | 091 38 31 W |
| Eifield (historical) | Populated Place | 222 | Marion | 41 24 42 N | 093 01 58 W |
| Eight Mile Pits Wildlife Management Area | Park | 375 | Hancock | 43 14 50 N | 093 44 41 W |
| Eightmile Branch | Stream | | Page | 40 48 57 N | 095 18 58 W |
| Eikenberry Park | Park | 316 | Lucas | 41 01 04 N | 093 18 44 W |
| Eischeid Memorial Athletic Complex | Building | 315 | Fayette | 42 50 25 N | 091 47 56 W |
| Eisenhower Elementary School | School | 253 | Wapello | 41 03 34 N | 092 24 39 W |
| Eisenhower School | School | 259 | Dubuque | 42 31 16 N | 090 43 05 W |
| Eisenhower School | School | 247 | Linn | 42 01 33 N | 091 39 50 W |
| Eisenhower School | School | 193 | Scott | 41 32 54 N | 090 32 26 W |
| Ekstrand School | School | 211 | Clinton | 41 49 21 N | 090 32 48 W |
| El Bethel Assembly of God Church | Church | 301 | Pottawattamie | 41 15 56 N | 095 52 07 W |
| El Bethel Assembly of God Church | Church | 223 | Scott | 41 34 10 N | 090 35 06 W |
| El Reacimiento | Church | 354 | Woodbury | 42 30 02 N | 096 23 48 W |
| Elan Cemetery | Cemetery | 339 | Pottawattamie | 41 26 34 N | 095 51 19 W |
| Elba Cemetery | Cemetery | 447 | Carroll | 41 54 25 N | 094 54 48 W |
| Elba Post Office (historical) | Post Office | 432 | Carroll | 41 55 08 N | 094 55 07 W |
| Elberon | Populated Place | 269 | Tama | 42 00 22 N | 092 19 01 W |
| Elberon (historical) | Locale | 256 | Tama | 42 00 27 N | 092 19 01 W |
| Elberon City Hall | Building | 269 | Tama | 42 00 22 N | 092 19 01 W |
| Elberon Fire Department | Building | 269 | Tama | 42 00 22 N | 092 19 01 W |
| Elberon Post Office | Post Office | 269 | Tama | 42 00 22 N | 092 19 01 W |
| Elbert Park | Park | 372 | Pocahontas | 42 44 21 N | 094 40 01 W |
| Elbow Creek | Stream | | Linn | 42 00 10 N | 091 29 04 W |
| Elbow Lake (historical) | Lake | 418 | Palo Alto | 43 06 60 N | 094 53 31 W |
| Elcho | Locale | 456 | O'Brien | 43 05 07 N | 095 30 12 W |
| Elcho Post Office (historical) | Post Office | 456 | O'Brien | 43 05 07 N | 095 30 12 W |
| Eldergrove | Populated Place | 342 | Allamakee | 43 14 23 N | 091 13 11 W |
| Eldergrove Post Office (historical) | Post Office | 342 | Allamakee | 43 14 23 N | 091 13 11 W |
| Eldon | Populated Place | 189 | Wapello | 40 55 07 N | 092 13 23 W |
| Eldon (historical) | Locale | 192 | Wapello | 40 55 02 N | 092 13 21 W |
| Eldon Cemetery | Cemetery | 227 | Wapello | 40 55 47 N | 092 13 31 W |
| Eldon City Hall | Building | 189 | Wapello | 40 55 07 N | 092 13 23 W |
| Eldon Family Medical Center | Hospital | 188 | Wapello | 40 55 10 N | 092 13 16 W |
| Eldon First Baptist Church | Church | 192 | Wapello | 40 55 08 N | 092 13 17 W |
| Eldon Post Office | Post Office | 189 | Wapello | 40 55 07 N | 092 13 23 W |
| Eldon Public Library | Building | 189 | Wapello | 40 55 07 N | 092 13 23 W |
| Eldon United Methodist Church | Church | 191 | Wapello | 40 55 12 N | 092 13 31 W |
| Eldon Wildlife Management Area | Park | 201 | Davis | 40 53 13 N | 092 14 54 W |
| Eldora | Locale | 324 | Hardin | 42 22 05 N | 093 06 21 W |
| Eldora | Populated Place | 331 | Hardin | 42 21 39 N | 093 05 59 W |
| Eldora - New Providence Elementary School | School | 324 | Hardin | 42 21 43 N | 093 05 43 W |
| Eldora - New Providence High School | School | 321 | Hardin | 42 21 25 N | 093 06 51 W |
| Eldora - New Providence Middle School | School | 329 | Hardin | 42 21 43 N | 093 05 51 W |
| Eldora Cemetery | Cemetery | 320 | Hardin | 42 21 55 N | 093 05 09 W |
| Eldora City Hall | Building | 329 | Hardin | 42 21 33 N | 093 05 59 W |
| Eldora City Park | Park | 314 | Hardin | 42 21 49 N | 093 05 02 W |
| Eldora Community Hospital | Hospital | 317 | Hardin | 42 21 35 N | 093 06 53 W |
| Eldora Fire Department | Building | 330 | Hardin | 42 21 34 N | 093 05 54 W |
| Eldora Junction Post Office (historical) | Post Office | 293 | Hardin | 42 17 50 N | 093 04 11 W |
| Eldora Library | Building | 326 | Hardin | 42 21 44 N | 093 05 47 W |
| Eldora Municipal Airport | Airport | 298 | Hardin | 42 19 48 N | 093 06 60 W |
| Eldora Municipal Park | Park | 315 | Hardin | 42 21 30 N | 093 05 33 W |
| Eldora Nursing and Rehab Center | Hospital | 322 | Hardin | 42 21 32 N | 093 06 42 W |
| Eldora Police Department | Building | 329 | Hardin | 42 21 33 N | 093 05 59 W |
| Eldora Post Office | Post Office | 329 | Hardin | 42 21 39 N | 093 06 02 W |
| Eldora Training School Cemetery | Cemetery | 303 | Hardin | 42 21 21 N | 093 07 45 W |
| Eldorado | Populated Place | 285 | Fayette | 43 03 02 N | 091 50 08 W |
| Eldorado Bridge | Bridge | 280 | Fayette | 43 03 15 N | 091 50 04 W |
| Eldorado Cemetery | Cemetery | 272 | Monroe | 41 09 24 N | 093 00 47 W |
| Eldorado Heights Park | Park | 271 | Black Hawk | 42 29 53 N | 092 27 16 W |
| Eldorado Post Office (historical) | Post Office | 286 | Fayette | 43 03 01 N | 091 50 10 W |
| Eldorado School | School | 260 | Monroe | 41 08 53 N | 093 00 07 W |
| Eldred Sherwood Park Lake | Reservoir | 373 | Hancock | 42 56 30 N | 093 33 56 W |
| Eldred Sherwood Park Lake Dam | Dam | 373 | Hancock | 42 56 30 N | 093 33 56 W |
| Eldred-Sherwood Recreation Area | Park | 375 | Hancock | 42 56 28 N | 093 33 46 W |
| Eldridge | Locale | 241 | Scott | 41 39 23 N | 090 34 58 W |
| Eldridge | Populated Place | 243 | Scott | 41 39 29 N | 090 35 04 W |
| Eldridge Cemetery | Cemetery | 236 | Scott | 41 39 50 N | 090 34 50 W |
| Eldridge City Hall | Building | 243 | Scott | 41 39 27 N | 090 35 07 W |
| Eldridge Fire Department | Building | 242 | Scott | 41 39 20 N | 090 35 02 W |
| Eldridge Island | Island | 180 | Jackson | 42 05 08 N | 090 10 05 W |
| Eldridge Police Department | Building | 243 | Scott | 41 39 27 N | 090 35 07 W |
| Eldridge Post Office | Post Office | 243 | Scott | 41 39 24 N | 090 35 02 W |
| Eldridge Slough | Stream | 178 | Jackson | 42 05 34 N | 090 10 08 W |
| Eldridge United Methodist Church | Church | 241 | Scott | 41 38 55 N | 090 35 02 W |
| Eleanor | Populated Place | 296 | Butler | 42 36 51 N | 092 50 58 W |
| Eleanor (historical) | Locale | 296 | Butler | 42 36 51 N | 092 50 58 W |
| Eleanor Post Office (historical) | Post Office | 296 | Butler | 42 36 51 N | 092 50 58 W |
| Elfsborg - Dover Township Cemetery | Cemetery | 387 | Pocahontas | 42 41 19 N | 094 51 08 W |
| Elfsborg Cemetery | Cemetery | 384 | Pocahontas | 42 37 01 N | 094 41 16 W |
| Elfsborg Church | Church | 384 | Pocahontas | 42 37 05 N | 094 41 16 W |