Cilcain
Cilcennin
Cilgerran
Cilgwm
Ciliau-Aeron
Cilrhedyn
Cilybebyll
Cilycwm
Clarbeston
Clarbeston Road
Clawdd-newydd
Clocaenog
Clunderwen
Clydach
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Clydach Vale
Clydey
Clynnog-fawr
Clyro
Coed-Talon
Coedana
Coedely
Coelbren
Cogan
Colva
Colwinston
Connahs Quay
Corris
Cosheston
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Court Henry
Coychurch
Cray
Cregrina
Cresselly
Cresswell Quay
Cribyn
Crick
Crickadarn
Crickhowell
Criggion
Crinow
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