C
- (Sligo) Castlegal
- (Sligo) Clogh
- (Sligo) Carrownamaddoo
- (Sligo) Cartronplank
- (Sligo) Creevykeel Cross Roads
- (Sligo) Castlegal
- (Sligo) Cloghboley
- (Sligo) Cloonagh
- (Sligo) Cashelgarran
- (County Leitrim) Corryolus
- (County Leitrim) Castlecarra
- (County Leitrim) Corlisheen
- (County Leitrim) Cornamucklagh South
- (County Leitrim) Cortober
- (County Leitrim) Curraghnabania
- (County Leitrim) Cromlin
- (County Leitrim) Cornageeragh
- (County Leitrim) Corderry Cross Roads
- (County Leitrim) Corlea
- (County Leitrim) Curraun
- (County Leitrim) Corraneary
- (County Leitrim) Cloonboygher
- (County Leitrim) Cuilmore
- (County Leitrim) Cleenaghoo
- (County Leitrim) Corraleehan
- (County Leitrim) Cherry Island
- (County Leitrim) Church Island
- (County Leitrim) Corry
- (County Leitrim) Corry Island
- (County Leitrim) Curraghs North