| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| 一之宮 | city | Kanagawa | Japan | 35.36 | 139.38 | 45 | 445989 |
| 一之宮 | city | Gifu | Japan | 36.09 | 137.25 | 2568 | 31764 |
| 一之江 | city | Tokyo | Japan | 35.69 | 139.88 | 3 | 1090492 |
| 一之江町 | city | Tokyo | Japan | 35.68 | 139.87 | 3 | 1066428 |
| 一之谷 | city | Shizuoka | Japan | 34.66 | 138.10 | 239 | 38760 |
| 一之貝 | city | Niigata | Japan | 37.44 | 138.96 | 1076 | 28355 |