| Niotaze, KS (City) |
| Nippawalla, KS (Township) |
| Nippenose Township, PA (Township) |
| Nishnabotny Township, IA (Township) |
| Niskayuna, NY (Town) |
| Nisland, SD (Town) |
| Nissequogue, NY (Village) |
| Nisswa, MN (City) |
| Nitro, WV (City) |
| Nixa, MO (City) |
| Nixon, TX (City) |
| Nixon Township, IL (Township) |
| NN PDC Independent Cities, VA (County) |
| Noble, IL (Village) |
| Noble, OK (City) |
