Cities and towns

• Yuma
• San Luis
• Somerton
• Wellton

Unincorporated communities

• Avenue B and C
• Aztec
• Buckshot
• Dateland
• Donovan Estates
• Drysdale
• El Prado Estates
• Fortuna Foothills
• Gadsden
• Martinez Lake
• Orange Grove Mobile Manor
• Padre Ranchitos
• Rancho Mesa Verde
• Tacna
• Wall Lane
• Wellton Hills
• Yuma Proving Ground