| Place | Post Code |
|---|---|
| Achadh Buí (Aughaboy, Kilcogy) | N39 |
| Carnagh Lower, Kilcogy | H12 |
| Carnagh Upper, Kilcogy | N39 |
| Cartronfree, Kilcogy | N39 |
| Cloncovid, Kilcogy | N39 |
| Cullaboy Lower, Kilcogy | N39 |
| Dún Dá Bheann (Dundavan, Kilcogy) | N39 |
| Cill Chóige (Kilcogy, Kilcogy) | N39 |
| Kilcogy Lower, Kilcogy | N39 |
| Kilcogy Upper, Kilcogy | N39 |
| Lisnatinny, Kilcogy | N39 |
| Pottlebane, Kilcogy | N39 |
| Tullygullin, Kilcogy | N39 |