| Place | Post Code |
|---|---|
| Cheraik, Lembus/Perkerra | 20100 |
| Kabimoi, Lembus/Perkerra | 20100 |
| Kapterit, Lembus/Perkerra | 20100 |
| Kibias, Lembus/Perkerra | 20100 |
| Kipkoriony, Lembus/Perkerra | 20100 |
| Orongai, Lembus/Perkerra | 20100 |
| Perkerra, Lembus/Perkerra | 20100 |
| Sagat, Lembus/Perkerra | 20100 |
| Saos, Lembus/Perkerra | 20100 |
| Tolmo, Lembus/Perkerra | 20100 |
| Toriok, Lembus/Perkerra | 20100 |
| Tuiyotich, Lembus/Perkerra | 20100 |
| All postal codes in Eldama Ravine | |
|---|---|
| Koibatek, Eldama Ravine | |
| Lembus, Eldama Ravine | |
| Lembus Kwen, Eldama Ravine | |
| Lembus/Perkerra, Eldama Ravine | |
| Mumberes/Maji Mazuri, Eldama Ravine | |
| Ravine, Eldama Ravine | |