Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Neola Family Dentistry Center | Hospital | 335 | Pottawattamie | 41 26 56 N | 095 37 00 W |
| Neola Fire Department | Building | 336 | Pottawattamie | 41 26 57 N | 095 36 59 W |
| Neola Post Office | Post Office | 335 | Pottawattamie | 41 26 56 N | 095 37 01 W |
| Nephus Cemetery | Cemetery | 257 | Marion | 41 15 20 N | 093 14 41 W |
| Neptune | Populated Place | 416 | Plymouth | 42 39 49 N | 096 09 22 W |
| Neptune Post Office (historical) | Post Office | 419 | Plymouth | 42 39 48 N | 096 09 16 W |
| Neska | Populated Place | 256 | Mahaska | 41 24 30 N | 092 30 49 W |
| Nesler Field | Airport | 347 | Webster | 42 25 60 N | 094 17 01 W |
| Nesse Cemetery | Cemetery | 332 | Hamilton | 42 19 30 N | 093 53 37 W |
| Nester Stiles State Preserve | Park | 412 | Cherokee | 42 41 55 N | 095 27 06 W |
| Netherland Reformed Christian Church | Church | 400 | Sioux | 43 11 54 N | 096 17 14 W |
| Netherland Reformed Church | Church | 380 | Sioux | 43 12 24 N | 096 17 40 W |
| Netherlands Reformed Christian School | School | 400 | Sioux | 43 11 54 N | 096 17 14 W |
| Netherlands Reformed Church | Church | 442 | Sioux | 43 04 53 N | 096 10 33 W |
| Neumann Auditorium | Building | 283 | Bremer | 42 43 40 N | 092 28 53 W |
| Neumann Cemetery | Cemetery | 202 | Van Buren | 40 39 40 N | 091 47 59 W |
| Neural Building | Building | 244 | Johnson | 41 42 40 N | 091 36 23 W |
| Neurosurgical Associates Center | Hospital | 327 | Pottawattamie | 41 16 04 N | 095 50 06 W |
| Nevada | Locale | 305 | Story | 42 01 32 N | 093 27 06 W |
| Nevada | Populated Place | 305 | Story | 42 01 22 N | 093 27 09 W |
| Nevada Back and Neck Care Center | Hospital | 305 | Story | 42 01 50 N | 093 26 50 W |
| Nevada Baptist Church | Church | 304 | Story | 42 01 17 N | 093 26 57 W |
| Nevada Cemetery | Cemetery | 302 | Story | 42 01 18 N | 093 27 43 W |
| Nevada Community High School | School | 304 | Story | 42 01 15 N | 093 26 19 W |
| Nevada Fire Station | Building | 305 | Story | 42 01 21 N | 093 26 50 W |
| Nevada Municipal Airport | Airport | 302 | Story | 42 01 10 N | 093 29 06 W |
| Nevada Police Department | Building | 301 | Story | 42 01 23 N | 093 26 08 W |
| Nevada Post Office | Post Office | 305 | Story | 42 01 19 N | 093 27 15 W |
| Nevada Public Library | Building | 305 | Story | 42 01 19 N | 093 27 05 W |
| Nevinville | Populated Place | 401 | Adams | 41 08 50 N | 094 30 03 W |
| Nevinville Post Office (historical) | Post Office | 401 | Adams | 41 08 50 N | 094 30 03 W |
| New Alba Post Office (historical) | Post Office | 350 | Winneshiek | 43 07 20 N | 092 03 16 W |
| New Albany School | School | 280 | Marion | 41 13 52 N | 093 08 07 W |
| New Albin | Locale | 196 | Allamakee | 43 29 50 N | 091 17 18 W |
| New Albin | Populated Place | 198 | Allamakee | 43 29 48 N | 091 17 22 W |
| New Albin Big Lake Public Hunting Area | Area | 190 | Allamakee | 43 28 35 N | 091 15 36 W |
| New Albin Big Lake Wildlife Management Area | Park | 190 | Allamakee | 43 28 50 N | 091 15 40 W |
| New Albin Cemetery | Cemetery | 193 | Allamakee | 43 29 59 N | 091 17 30 W |
| New Albin Elementary School | School | 196 | Allamakee | 43 29 35 N | 091 17 17 W |
| New Albin Fire Department | Building | 198 | Allamakee | 43 29 48 N | 091 17 22 W |
| New Albin Municipal Building | Building | 198 | Allamakee | 43 29 48 N | 091 17 22 W |
| New Albin Police Department | Building | 198 | Allamakee | 43 29 48 N | 091 17 22 W |
| New Albin Post Office | Post Office | 198 | Allamakee | 43 29 48 N | 091 17 22 W |
| New Albion | Populated Place | 284 | Butler | 42 38 34 N | 092 43 54 W |
| New Albion Cemetery | Cemetery | 298 | Butler | 42 38 34 N | 092 44 31 W |
| New Altoona Cemetery | Cemetery | 278 | Polk | 41 39 08 N | 093 26 46 W |
| New Amsterdam Township Cemetery | Cemetery | 358 | Hancock | 42 56 19 N | 093 48 11 W |
| New Barclay Cemetery | Cemetery | 302 | Black Hawk | 42 30 41 N | 092 05 55 W |
| New Beginning Church of God | Church | 214 | Johnson | 41 41 10 N | 091 36 01 W |
| New Bergen Post Office (historical) | Post Office | 386 | Emmet | 43 19 43 N | 094 46 53 W |
| New Bethel Baptist Church | Church | 300 | Dallas | 41 50 38 N | 094 05 55 W |
| New Bethel Church | Church | 440 | Guthrie | 41 37 15 N | 094 41 08 W |
| New Bethel Church of Keokuk | Church | 180 | Lee | 40 24 17 N | 091 23 06 W |
| New Bethel United Methodist Church | Church | 447 | Adair | 41 30 02 N | 094 38 31 W |
| New Birth Church of God | Church | 368 | Woodbury | 42 30 30 N | 096 24 39 W |
| New Boston | Populated Place | 209 | Lee | 40 33 38 N | 091 30 20 W |
| New Boston (historical) | Locale | 209 | Lee | 40 33 38 N | 091 30 20 W |
| New Boston Cemetery | Cemetery | 207 | Lee | 40 33 49 N | 091 30 30 W |
| New Boston Mennonite Church | Church | 208 | Lee | 40 33 39 N | 091 30 20 W |
| New Boston Post Office (historical) | Post Office | 209 | Lee | 40 33 38 N | 091 30 20 W |
| New Buda | Populated Place | 281 | Decatur | 40 36 05 N | 093 48 38 W |
| New Buda Cemetery | Cemetery | 304 | Decatur | 40 36 12 N | 093 49 57 W |
| New Buda Post Office (historical) | Post Office | 281 | Decatur | 40 36 06 N | 093 48 38 W |
| New Buffalo | Populated Place | 252 | Linn | 42 02 05 N | 091 42 14 W |
| New Castle Post Office (historical) | Post Office | 234 | Jackson | 42 09 25 N | 090 41 45 W |
| New Chicago Post Office (historical) | Post Office | 244 | Marion | 41 13 09 N | 093 19 09 W |
| New Co-op Elevator | Locale | 378 | Pocahontas | 42 37 50 N | 094 36 02 W |
| New Cooperative Company Elevator | Locale | 350 | Webster | 42 36 57 N | 094 08 49 W |
| New Cooperative Incorporated Elevator | Locale | 351 | Calhoun | 42 16 13 N | 094 32 55 W |
| New Cooperative Incorporated Elevator | Locale | 351 | Webster | 42 26 30 N | 094 17 42 W |
| New Covenant Bible Church | Church | 239 | Linn | 42 01 19 N | 091 39 52 W |
| New Covenant Christian Church | Church | 339 | Webster | 42 30 04 N | 094 08 51 W |
| New Creation United Methodist Church | Church | 250 | Linn | 41 56 43 N | 091 43 26 W |
| New Creations Ministries | Church | 365 | Woodbury | 42 30 02 N | 096 25 37 W |
| New Dixon | Populated Place | 206 | Scott | 41 44 05 N | 090 46 17 W |
| New Era | Populated Place | 227 | Muscatine | 41 27 58 N | 090 53 32 W |
| New Era Ziegler Memorial Church | Church | 227 | Muscatine | 41 27 59 N | 090 53 39 W |
| New Fellowship Christian Church | Church | 164 | Des Moines | 40 48 24 N | 091 06 11 W |
| New Friendship Church of God | Church | 282 | Polk | 41 36 16 N | 093 38 06 W |
| New Galena Post Office (historical) | Post Office | 268 | Allamakee | 43 25 55 N | 091 31 39 W |
| New Hamburgh Post Office (historical) | Post Office | 221 | Scott | 41 39 45 N | 090 46 05 W |
| New Hampton | Locale | 354 | Chickasaw | 43 03 58 N | 092 19 03 W |
| New Hampton | Populated Place | 353 | Chickasaw | 43 03 33 N | 092 19 04 W |
| New Hampton Care Center | Hospital | 350 | Chickasaw | 43 03 15 N | 092 19 01 W |
| New Hampton Cemetery | Cemetery | 351 | Chickasaw | 43 03 23 N | 092 19 17 W |
| New Hampton Chiropractic Center | Hospital | 354 | Chickasaw | 43 03 35 N | 092 18 47 W |
| New Hampton Clinic | Hospital | 351 | Chickasaw | 43 03 26 N | 092 19 05 W |
| New Hampton Community Center | Building | 352 | Chickasaw | 43 03 31 N | 092 18 47 W |
| New Hampton Country Club | Locale | 347 | Chickasaw | 43 03 28 N | 092 14 23 W |
| New Hampton Elementary School | School | 353 | Chickasaw | 43 03 32 N | 092 19 07 W |
| New Hampton Fire Department | Building | 353 | Chickasaw | 43 03 33 N | 092 19 04 W |
| New Hampton High School | School | 351 | Chickasaw | 43 03 32 N | 092 19 46 W |
| New Hampton Municipal Airport | Airport | 357 | Chickasaw | 43 05 14 N | 092 20 36 W |
| New Hampton Nursing and Rehabilitation Center | Hospital | 350 | Chickasaw | 43 03 12 N | 092 18 16 W |
| New Hampton Police Department | Building | 352 | Chickasaw | 43 03 31 N | 092 18 47 W |
| New Hampton Post Office | Post Office | 354 | Chickasaw | 43 03 38 N | 092 18 56 W |
| New Hampton Public Library | Building | 353 | Chickasaw | 43 03 29 N | 092 18 59 W |
| New Hartford | Locale | 273 | Butler | 42 33 54 N | 092 37 19 W |
| New Hartford | Populated Place | 274 | Butler | 42 34 01 N | 092 37 20 W |
| New Hartford City Hall | Building | 273 | Butler | 42 34 00 N | 092 37 20 W |
| New Hartford City Library | Building | 273 | Butler | 42 34 00 N | 092 37 20 W |
| New Hartford Community Schools | School | 274 | Butler | 42 34 12 N | 092 37 10 W |
| New Hartford Fire Department | Building | 273 | Butler | 42 34 00 N | 092 37 20 W |
| New Hartford Police Department | Building | 273 | Butler | 42 34 00 N | 092 37 20 W |
| New Hartford Post Office | Post Office | 273 | Butler | 42 34 00 N | 092 37 20 W |
| New Haven | Populated Place | 339 | Mitchell | 43 17 04 N | 092 38 32 W |
| New Haven Cemetery | Cemetery | 230 | Washington | 41 17 40 N | 091 50 54 W |
| New Haven Post Office (historical) | Post Office | 339 | Mitchell | 43 17 05 N | 092 38 31 W |
| New Haven Post Office (historical) | Post Office | 232 | Washington | 41 17 35 N | 091 50 08 W |
| New Haven Potholes | Park | 338 | Mitchell | 43 18 38 N | 092 40 31 W |