Cities and towns

• Cortland
• Cortlandville
• Homer
• Homer
• Virgil
• Marathon
• Preble
• Scott
• Solon
• McGraw
• Truxton
• Cuyler
• Cincinnatus
• Marathon
• Willet
• Harford
• Lapeer
• Freetown
• Taylor

Unincorporated communities

• Blodgett Mills
• Cortland West
• Munsons Corners
• Virgil