| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Koijaervi | city | Kanta-Hame | Finland | 60.93 | 23.65 | 830 | 3813 |
| Koijam | city | West Darfur | Sudan | 12.16 | 22.66 | 1873 | 1937 |
| Koijei | city | Southern | Sierra Leone | 6.99 | -11.47 | 301 | 1914 |
| Koijärvi | city | Kanta-Hame | Finland | 60.93 | 23.65 | 830 | 3813 |