| Place | Post Code |
|---|---|
| Kanda Kaina K Tegui, Simiri | None |
| Kanga Yaou Koira, Simiri | None |
| Kano Koira, Simiri | None |
| Karey Bangou, Simiri | None |
| Karey Bongou, Simiri | None |
| Karfale, Simiri | None |
| Karfale Koubora, Simiri | None |
| Karimou Koira, Simiri | None |
| Karimou Kouara, Simiri | None |
| Karsani Koira, Simiri | None |
| Kini Bayi, Simiri | None |
| Kirize Koira, Simiri | None |
| Kobanda Lawey, Simiri | None |
| Kobanda Sounwontche, Simiri | None |
| Kofouno, Simiri | None |
| Kogorou, Simiri | None |
| Koira Kaina, Simiri | None |
| Koira Koukou, Simiri | None |
| All postal codes in Ouallam | |
|---|---|
| Dingazi, Ouallam | |
| Ouallam, Ouallam | |
| Simiri, Ouallam | |
| Tondikiwindi, Ouallam | |