| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Jikkoku | city | Ibaraki | Japan | 36.00 | 140.18 | 65 | 120905 |
| Jinkōji | city | Ibaraki | Japan | 35.98 | 140.65 | 108 | 59801 |
| Joso-shi | city | Ibaraki | Japan | 36.04 | 139.96 | 39 | 51630 |
| Jōsō | city | Ibaraki | Japan | 36.04 | 139.96 | 39 | 51630 |
| Jūwa | city | Ibaraki | Japan | 36.00 | 140.00 | 32 | 78252 |