Trinity
- Big Bar
- Burnt Ranch
- Carrville
- Coffee
- Coffee Creek
- Dedrick
- Del Loma
- Denny
- Douglas City
- Forest Glen
- Globe Mill
- Hawkins Bar
- Hayfork
- Helena
- Hoboken
- Hyampom
- Island Mountain
- Junction City
- Kekawaka
- Kettenpom
- Lewiston
- Mad River
- Payne
- Peanut
- Penney
- Ridgeville
- Ruth
- Salyer
- Trinity Alps
- Trinity Center
- Trinity Village
- Weaverville
- Wildwood
- Zenia