Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Nordyke Post Office (historical) | Post Office | 291 | Dallas | 41 32 46 N | 093 49 06 W |
| Norelius Community Library | Building | 379 | Crawford | 42 00 56 N | 095 21 12 W |
| Norfolk Creek | Stream | | Allamakee | 43 09 41 N | 091 28 05 W |
| Norman | Locale | 397 | Winnebago | 43 29 16 N | 093 29 56 W |
| Norman (historical) | Locale | 392 | Winnebago | 43 29 35 N | 093 29 57 W |
| Norman (historical) | Populated Place | 392 | Winnebago | 43 29 35 N | 093 29 57 W |
| Norman F Beckey Bridge | Bridge | 161 | Muscatine | 41 25 17 N | 091 01 58 W |
| Norman Post Office (historical) | Post Office | 392 | Winnebago | 43 29 35 N | 093 29 57 W |
| Normon Trail Lake | Lake | 376 | Adair | 41 14 33 N | 094 38 06 W |
| Norris Family Cemetery | Cemetery | 368 | Union | 41 00 30 N | 094 09 31 W |
| Norris Residence Hall | Building | 311 | Poweshiek | 41 45 05 N | 092 43 19 W |
| Norris Siding | Populated Place | 266 | Black Hawk | 42 33 00 N | 092 28 51 W |
| Norris Youth Softball Complex | Park | 327 | Cerro Gordo | 43 09 18 N | 093 10 36 W |
| Norsk Lutheran Cemetery | Cemetery | 325 | Clayton | 42 57 52 N | 091 10 35 W |
| North American Trailer Park | Populated Place | 254 | Warren | 41 20 20 N | 093 33 31 W |
| North Amish Cemetery | Cemetery | 311 | Buchanan | 42 37 02 N | 091 59 01 W |
| North Avery Creek | Stream | | Wapello | 41 05 14 N | 092 34 53 W |
| North Bay | Bay | 426 | Dickinson | 43 25 35 N | 095 10 16 W |
| North Bear Creek | Stream | | Winneshiek | 43 26 54 N | 091 36 57 W |
| North Bear Creek Access Area | Locale | 270 | Winneshiek | 43 27 06 N | 091 37 41 W |
| North Beaver Creek | Stream | | Butler | 42 35 49 N | 092 56 26 W |
| North Bellevue | Populated Place | 194 | Jackson | 42 16 42 N | 090 26 04 W |
| North Bend Church | Church | 299 | Appanoose | 40 50 51 N | 093 00 09 W |
| North Bend Post Office (historical) | Post Office | 372 | Mitchell | 43 23 15 N | 092 35 06 W |
| North Bend School Cemetery | Cemetery | 214 | Jackson | 42 05 28 N | 090 27 40 W |
| North Branch | Populated Place | 428 | Guthrie | 41 38 45 N | 094 42 55 W |
| North Branch Big Creek | Stream | | Henry | 40 59 29 N | 091 29 48 W |
| North Branch Cemetery | Cemetery | 323 | Madison | 41 29 20 N | 094 04 49 W |
| North Branch Elk River | Stream | | Clinton | 42 00 52 N | 090 14 35 W |
| North Branch Lizard Creek | Stream | | Pocahontas | 42 38 28 N | 094 28 32 W |
| North Branch North River | Stream | | Madison | 41 25 29 N | 093 54 54 W |
| North Branch Old Mans Creek | Stream | | Johnson | 41 36 48 N | 091 42 05 W |
| North Branch Post Office (historical) | Post Office | 428 | Guthrie | 41 38 45 N | 094 42 55 W |
| North Branch Post Office (historical) | Post Office | 322 | Madison | 41 26 20 N | 094 02 31 W |
| North Branch Turkey River | Stream | | Howard | 43 20 29 N | 092 10 55 W |
| North Branch Volga River | Stream | | Fayette | 42 49 53 N | 091 54 47 W |
| North Branch West Nodaway River | Stream | | Page | 40 44 39 N | 095 00 50 W |
| North Buena Vista | Populated Place | 198 | Clayton | 42 40 47 N | 090 57 23 W |
| North Buena Vista Cemetery | Cemetery | 271 | Clayton | 42 39 60 N | 090 57 00 W |
| North Buena Vista Post Office | Post Office | 198 | Clayton | 42 40 47 N | 090 57 23 W |
| North Campus Housing Units | Building | 345 | Decatur | 40 37 08 N | 093 55 29 W |
| North Canoe Creek | Stream | | Winneshiek | 43 22 54 N | 091 46 28 W |
| North Cascade School | School | 262 | Dubuque | 42 27 57 N | 090 43 47 W |
| North Cedar | Populated Place | 264 | Black Hawk | 42 33 17 N | 092 27 21 W |
| North Cedar Community School | School | 256 | Cedar | 41 53 42 N | 091 09 05 W |
| North Cedar Community School | School | 259 | Cedar | 41 53 05 N | 091 03 34 W |
| North Cedar Creek | Stream | | Clayton | 42 58 03 N | 091 13 32 W |
| North Cedar Creek | Stream | | Marion | 41 12 51 N | 092 55 01 W |
| North Cedar Elementary School | School | 280 | Cedar | 41 54 18 N | 091 15 27 W |
| North Cedar Elementary School | School | 223 | Cedar | 41 51 38 N | 090 55 46 W |
| North Cedar Park | Park | 283 | Bremer | 42 51 05 N | 092 31 21 W |
| North Cedar Park | Park | 286 | Bremer | 42 50 52 N | 092 31 22 W |
| North Cedar School | School | 265 | Black Hawk | 42 33 30 N | 092 27 13 W |
| North Cemetery | Cemetery | 333 | Chickasaw | 43 05 01 N | 092 09 49 W |
| North Central Coop Elevator | Locale | 351 | Wright | 42 44 15 N | 093 50 01 W |
| North Central Cooperative Elevator | Locale | 360 | Hancock | 42 56 03 N | 093 47 43 W |
| North Central Iowa Physicians Center | Hospital | 340 | Webster | 42 28 19 N | 094 11 49 W |
| North Central School | School | 361 | Worth | 43 17 10 N | 093 11 46 W |
| North Chequest Creek | Stream | | Davis | 40 50 11 N | 092 18 07 W |
| North Coal Creek | Stream | | Mahaska | 41 14 07 N | 092 46 17 W |
| North Court Baptist Church | Church | 246 | Wapello | 41 02 08 N | 092 24 31 W |
| North Creek | Stream | | Appanoose | 40 36 31 N | 092 56 00 W |
| North Creek Park | Park | 291 | Polk | 41 44 18 N | 093 38 19 W |
| North Des Moines Alternative High School | School | 273 | Polk | 41 36 40 N | 093 38 19 W |
| North Des Moines Post Office (historical) | Post Office | 279 | Polk | 41 36 03 N | 093 38 16 W |
| North East Iowa Garden of Memories | Cemetery | 326 | Chickasaw | 42 58 21 N | 092 16 44 W |
| North Elm Creek | Stream | | Madison | 41 23 06 N | 093 53 29 W |
| North English | Populated Place | 250 | Iowa | 41 30 50 N | 092 04 35 W |
| North English (historical) | Locale | 238 | Iowa | 41 30 43 N | 092 04 35 W |
| North English Cemetery | Cemetery | 254 | Iowa | 41 31 07 N | 092 05 12 W |
| North English Family Practice Center | Hospital | 250 | Iowa | 41 30 50 N | 092 04 35 W |
| North English Fire Department | Building | 247 | Iowa | 41 31 00 N | 092 04 35 W |
| North English Library | Building | 250 | Iowa | 41 30 50 N | 092 04 35 W |
| North English Post Office | Post Office | 256 | Iowa | 41 30 55 N | 092 04 41 W |
| North English River | Stream | | Iowa | 41 34 51 N | 092 04 37 W |
| North Fabius Creek | Stream | | Davis | 40 38 02 N | 092 30 03 W |
| North Fairview Cemetery | Cemetery | 391 | Taylor | 40 52 57 N | 094 34 32 W |
| North Fayette Middle School | School | 360 | Fayette | 42 57 47 N | 091 48 27 W |
| North Fork Black Hawk Creek | Stream | | Grundy | 42 22 35 N | 092 32 16 W |
| North Fork Catfish Creek | Stream | | Dubuque | 42 28 59 N | 090 42 16 W |
| North Fork Clanton Creek | Stream | | Madison | 41 12 53 N | 093 56 34 W |
| North Fork Floyd River | Stream | | O'Brien | 43 14 36 N | 095 42 09 W |
| North Fork Little Maquoketa River | Stream | | Dubuque | 42 33 34 N | 090 46 23 W |
| North Fork Long Creek | Stream | | Washington | 41 16 01 N | 091 30 54 W |
| North Fork Maquoketa River | Stream | | Jackson | 42 05 13 N | 090 40 10 W |
| North Fork South Beaver Creek | Stream | | Grundy | 42 29 44 N | 092 52 02 W |
| North Fork Walnut Creek | Stream | | Jones | 42 00 09 N | 091 15 53 W |
| North Fork Yellow River | Stream | | Winneshiek | 43 08 20 N | 091 36 33 W |
| North Fourteenth Street Park | Park | 402 | Emmet | 43 24 17 N | 094 49 32 W |
| North Fox Creek | Stream | | Davis | 40 45 29 N | 092 32 51 W |
| North Grand Church of Christ | Church | 293 | Story | 42 03 06 N | 093 37 26 W |
| North Grand Mall | Locale | 293 | Story | 42 02 55 N | 093 37 21 W |
| North Grove | Locale | 339 | Page | 40 51 25 N | 095 08 51 W |
| North Grove Cemetery | Cemetery | 342 | Mills | 41 00 58 N | 095 27 44 W |
| North Grove Cemetery | Cemetery | 370 | Page | 40 50 32 N | 094 56 24 W |
| North Grove Post Office (historical) | Post Office | 370 | Page | 40 50 60 N | 095 07 51 W |
| North Hall | Building | 205 | Johnson | 41 39 58 N | 091 32 11 W |
| North Hall | Building | 435 | Sioux | 42 59 57 N | 096 03 35 W |
| North Hall | Building | 373 | Woodbury | 42 31 38 N | 096 25 35 W |
| North Haven Wildlife Area | Park | 337 | Mitchell | 43 17 25 N | 092 39 26 W |
| North High School | School | 355 | Fayette | 42 58 07 N | 091 48 05 W |
| North High School | School | 244 | Polk | 41 37 06 N | 093 37 23 W |
| North High School | School | 221 | Scott | 41 34 34 N | 090 34 42 W |
| North High School | School | 415 | Woodbury | 42 32 36 N | 096 23 26 W |
| North Hill Cemetery | Cemetery | 219 | Washington | 41 10 00 N | 091 39 34 W |
| North Hill Dermatology Office | Hospital | 203 | Des Moines | 40 48 59 N | 091 06 17 W |
| North Hill School | School | 197 | Des Moines | 40 49 00 N | 091 06 25 W |
| North Hoosier Creek | Stream | | Clarke | 40 57 35 N | 093 41 47 W |
| North Iowa Alternative High School | School | 388 | Winnebago | 43 22 16 N | 093 46 16 W |
| North Iowa Area Community College | School | 345 | Cerro Gordo | 43 09 30 N | 093 07 59 W |