Each Area Office deals with queries in relation specifically to either North or South Leitrim.
North Leitrim Areas:
| Aghalateeve | Cloonclare | Glenaniff | Killargue | Melvin |
| Aghanlish | Cloonlougher | Glenboy | Kiltyclogher | Munakill |
| Aghavoghil | Dromahaire | Glencar | Kinlough | Sramore |
| Arigna | Drumkeeran | Glenfarne | Lurganboy | Tullaghan |
| Ballaghameehan | Garvagh | Gubacreeny | Mahanagh | |
| Belhavel | Glenade | Killanummery | Manorhamilton | |
North Leitrim Area Office:
Manorhamilton
District Engineer: Sean Rynn
T: 071 9855033
South Leitrim Areas:
| Aghacashel | Cloverhill | Keeldra | Rowan | Dromod |
| Aghavas | Corrala | Keshcarrigan | Stralongford | Drumard |
| Ballinamore | Corriga | Killygar | Yugan | Drumdoo |
| Barnameenagh | Drumreilly | Kiltubrid | Annaduff | Drumsna |
| Carrigallen East | Drumshanbo | Lisgillock | Beihy | Gortnagullion |
| Carrigallen West | Fenagh | Moher | Breandrum | Gowel |
| Castlefore | Garadice | Newtowngore | Bunnybeg | Leitrim |
| Cloone | Gortemone | Oughteragh | Ck-On-Shannon | Mohill |
| Greaghglass | Riverstown | Cashel | Rinn |
| | | | Cattan | Rooskey |
South Leitrim Area Office
Park Lane
Carrick on Shannon
District Engineer: Darragh O'Boyle
T: 071 9620005