Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Isabel (S.D.) | 0 | 0 | |
| Isanti (Minn.) | 48 | 0 | |
| Isinours (Minn.) | 0 | 0 | |
| Island (Minn.) | 38 | 0 | |
| Ismay (Mont.) | 0 | 0 | |
| Issaquah (Wash.) | 14 | 0 | |
| Itasca (Ill.) | 1 | 0 | |
| Itasca (Minn.) | 2 | 0 | |
| Itasce (Ill.) | 0 | 0 | |
| Itaska (Minn.) | 5 | 0 |