- Cadiz
- Cambridge City
- Camden
- Campbellsburg
- Canaan
- Cannelburg
- Cannelton
- Carbon
- Carefree
- Carlisle
- Carmel
- Carthage
- Castleton
- Cayuga
- Cedar Grove
- Cedar Lake
- Center Point
- Centerville
- Chalmers
- Chandler
- Charlestown
- Chesterfield
- Chesterton
- Chrisney
- Churubusco
- Cicero
- Clarks Hill
- Clarksburg
- Clarksville
- Clay City
- Claypool
- Clayton
- Clear Lake
- Clermont
- Clifford
- Clinton
- Cloverdale
- Coalmont
- Coatesville
- Colburn
- Colfax
- Collegeville
- Columbia City
- Columbus
- Connersville
- Converse
- Cordry Sweetwater Lakes
- Corunna
- Corydon
- Country Club Heights
- Country Squire Lakes
- Covington
- Crandall
- Crane
- Crawfordsville
- Cromwell
- Crothersville
- Crown Point
- Crows Nest
- Culver
- Cumberland
- Cynthiana
