Nashua to Oyens
(Click a column header to sort)
| City | Population |
| Nashua | 1,618 |
| Nemaha | 102 |
| Neola | 845 |
| Nevada | 6,658 |
| New Albin | 527 |
| New Hampton | 3,692 |
| New Hartford | 659 |
| New Liberty | 121 |
| New London | 1,937 |
| New Market | 456 |
| New Providence | 227 |
| New Sharon | 1,301 |
| New Vienna | 400 |
| New Virginia | 469 |
| Newell | 887 |
| Newhall | 886 |
| Newton | 15,579 |
| Nichols | 374 |
| Nodaway | 132 |
| Nora Springs | 1,532 |
| North Buena Vista | 124 |
| North English | 991 |
| North Liberty | 7,224 |
| North Washington | 118 |
| Northboro | 60 |
| Northwood | 2,050 |
| Norwalk | 8,229 |
| Norway | 601 |
| Numa | 109 |
| Oakland | 1,487 |
| Oakland Acres | 166 |
| Oakville | 439 |
| Ocheyedan | 536 |
| Odebolt | 1,153 |
| Oelwein | 6,692 |
| Ogden | 2,023 |
| Okoboji | 820 |
| Olds | 249 |
| Olin | 716 |
| Ollie | 224 |
| Onawa | 3,091 |
| Onslow | 223 |
| Orange City | 5,589 |
| Orchard | 88 |
| Orient | 402 |
| Orleans | 583 |
| Osage | 3,451 |
| Osceola | 4,659 |
| Oskaloosa | 10,938 |
| Ossian | 853 |
| Osterdock | 50 |
| Otho | 571 |
| Oto | 145 |
| Ottosen | 61 |
| Ottumwa | 24,998 |
| Owasa | 38 |
| Oxford | 705 |
| Oxford Junction | 573 |
| Oyens | 132 |
|
