- Carl
- Carlisle
- Carlisle
- Carlos
- Carlos Acres Colonia
- Carlos G Leal, Junior Colonia
- Carlos G Leal, Junior Colonia Number 2
- Carls Corner
- Carlsbad
- Carlson
- Carlton
- Carmel Village
- Carmine
- Carmona
- Carnes
- Caro
- Carol Colonia
- Carolina
- Carolina Gardens
- Carpenter
- Carpenters Bluff
- Carr
- Carretas Crossing
- Carricitos
- Carricitos-Landrum Colonia
- Carrizo Hill
- Carrizo Hills Colonia
- Carrizo Springs
- Carroll
- Carrollton