- Callisburg
- Calma Estates Colonia Number 2
- Calma Estates Colonia Number 3
- Calvary
- Calvert
- Calvert Junction
- Chaparrito Colonia
- Cambridge
- Cambridge Village
- Camden
- Cameron
- Cameron Park
- Cameron Park Colonia
- Camey
- Camilla
- Camino Barrial Colonia
- Camino South
- Camp Air
- Camp Dallas
- Camp Hulen
- Camp Ruby
- Camp San Saba
- Camp Seale
- Camp Springs
- Camp Swift
- Camp Verde
- Camp Willow
- Camp Wood
- Campbell
- Campbell Island