- Caburn, near Lewes, East Sussex
- Camber, near Rye, East Sussex
- Catsfield, Rother District, East Sussex
- Chailey, Lewes District, East Sussex
- Chalvington, Wealden District, East Sussex
- Chanctonbury, South Downs, West Sussex
- Charleston, near Firle, East Sussex
- Charlton, Chichester District, West Sussex
- Chichester, West Sussex
- Chichester: Cathedral
- Chichester: Diocese
- Chichester: Guides and directories
- Chichester: Harbour
- Chichester: Oliver Whitby School
- Chichester: Pallant House
- Chichester: St James and St Mary Magdalene Hospital
- Chiddingfold, Surrey
- Chiddingly, Wealden District, East Sussex
- Chidham, Chichester District, West Sussex
- Chilgrove, South Downs, West Sussex
- Chithurst, South Downs, West Sussex
- Cinque Ports, East Sussex
- Cissbury, South Downs, West Sussex
- Clapham, Arun District, West Sussex
- Clayton, Mid Sussex District, West Sussex
- Climping, Adur District, West Sussex
- Coates, Chichester District, West Sussex
- Cocking, Chichester District, West Sussex
- Coldwaltham, Horsham District, West Sussex
- Coleman's Hatch, Ashdown Forest, East Sussex
- Colgate, Horsham District, West Sussex
- Compton, Chichester District, West Sussex
- Coneyhurst, Horsham District, West Sussex
- Cooksbridge, Lewes District, East Sussex
- Coolham, Horsham District, West Sussex
- Coombe Hill, near Jevington, East Sussex
- Coombes, Adur District, West Sussex
- Copthorne, Mid Sussex District, West Sussex
- Cowdray, near Midhurst, West Sussex
- Cowfold, Horsham District, West Sussex
- Crawley Down, West Sussex
- Crawley, West Sussex
- Crawley: Milton Mount College
- Cross-in-Hand, near Heathfield, Wealden District, East Sussex
- Crowborough, Wealden District, East Sussex
- Crowhurst, Rother District, East Sussex
- Cuckfield, Mid Sussex District, West Sussex
- Cuckmere Valley, Wealden District, East Sussex
