Cities and towns

• Yreka
• Mount Shasta
• Weed
• Dunsmuir
• Montague
• Tulelake
• Dorris
• Fort Jones
• Etna

Unincorporated communities

• Carrick
• Edgewood
• Gazelle
• Greenview
• Grenada
• Happy Camp
• Hornbrook
• Lake Shastina
• Macdoel
• McCloud
• Mount Hebron
• Tennant