| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| 赤井 | city | Saitama | Japan | 35.83 | 139.75 | 29 | 912042 |
| 赤井 | city | Miyagi | Japan | 38.45 | 141.23 | 72 | 65215 |
| 赤井 | city | Saitama | Japan | 35.83 | 139.75 | 29 | 926611 |
| 赤井 | city | Kumamoto | Japan | 32.78 | 130.82 | 282 | 94742 |
| 赤井町 | city | Ishikawa | Japan | 36.46 | 136.48 | 104 | 65324 |
| 赤井谷 | city | Kagoshima | Japan | 31.33 | 130.56 | 200 | 2917 |