Leitrim County Council is divided into the following local electoral areas and municipal districts, defined by electoral divisions:
| Municipal District and LEA | District and LEA Definition | Seats |
|---|---|---|
| Ballinamore | Aghacashel, Aghavas, Ballinamore, Barnameenagh, Carrigallen East, Carrigallen West, Castlefore, Cattan, Cloone, Cloverhill, Corrala, Corriga, Drumreilly East, Drumreilly North, Drumreilly South, Drumreilly West, Drumshanbo, Fenagh, Garadice, Gortermone, Greaghglass, Keeldra, Keshcarrigan, Killygar, Kiltubbrid, Lisgillock, Moher, Newtowngore, Oughteragh, Riverstown, Rowan, Stralongford and Yugan. | 6 |
| Carrick-on-Shannon | Annaduff, Beihy, Breandrum, Bunnybeg, Carrick-on-Shannon, Cashel, Drumard, Drumdoo, Drumod, Drumsna, Gortnagullion, Gowel, Leitrim, Mohill, Rinn and Roosky. | 6 |
| Manorhamilton | Aghalateeve, Aghanlish, Aghavoghil, Arigna, Ballaghameehan, Belhavel, Cloonclare, Cloonlogher, Drumahaire, Drumkeeran, Garvagh, Glenade, Glenaniff, Glenboy, Glencar, Glenfarn, Gubacreeny, Killanummery, Killarga, Kiltyclogher, Kinlough, Lurganboy, Mahanagh, Manorhamilton, Melvin, Munakill, Sramore, St. Patricks and Tullaghan. | 6 |