- Castle Shannon
- Castle Rock
- Castle Rock
- Castle Point
- Castle Pines
- Castle Hills
- Castaic
- Cassville
- Casselton
- Casselberry
- Cass City
- Casper
- Cashmere
- Caseyville
- Casey
- Cascade Valley
- Cascade
- Casas Adobes
- Casa Grande
- Casa de Oro-Mount Helix
- Casa Conejo
- Caryville
- Cary
- Cary
- Carver Ranches
- Carver
- Carver
- Caruthersville
- Caruthers
- Carthage
- Carthage
- Carthage
- Carthage
- Carthage
- Carthage
- Carthage
- Carthage
- Carterville
- Cartersville
- Carteret
- Carter Lake
- Carson City
- Carson
- Carson
- Carrollwood Village
- Carrollwood
- Carrollton
- Carrollton
- Carrollton
- Carrollton
- Carrollton
- Carrollton
- Carrollton
- Carrollton
- Carroll Valley
- Carroll
- Carrizo Springs
- Carrington
- Carrboro
- Carrabelle
- Carpinteria
- Carpentersville
- Carolina Shores
- Carolina Beach
- Carol Stream
- Carol City
- Caro
- Carnot-Moon
- Carneys Point
- Carney
- Carnegie
- Carmichael
- Carmi
- Carmel-by-the-Sea
- Carmel Valley Village
- Carmel Hamlet
- Carmel
- Carmel
- Carmel
- Carlyss
- Carlyle
- Carlton
- Carlstadt
- Carlsbad
- Carlsbad
- Carlisle
- Carlisle
- Carlisle
- Carlisle
- Carlisle
- Carlisle
- Carlinville
- Carlin
- Carleton
- Carle Place
- Carl Junction
- Caribou
- Carey
- Carencro
- Carefree
