Idaho Cities
- Cabarton, ID
- Cabinet, ID
- Calder, ID
- Caldwell, ID
- Calendar, ID
- Camas, ID
- Cambridge, ID
- Cameron, ID
- Carbon Center, ID
- Cardiff, ID
- Cardiff Mill, ID
- Cardwell, ID
- Carey, ID
- Careywood, ID
- Caribel, ID
- Carmen, ID
- Carrietown, ID
- Cascade, ID
- Castle Rocks, ID
- Castleford, ID
- Casto, ID
- Cataldo, ID
- Cathedral Pines, ID
- Cavendish, ID
- Cedar, ID
- Cedar Creek, ID
- Cedarhill, ID
- Cedron, ID
- Centerville, ID
- Central, ID
- Central Cove, ID
- Cerro Grande, ID
- Chalk Cut, ID
- Challis, ID
- Chapin, ID
- Chatcolet, ID
- Chausse, ID
- Cherry Creek, ID
- Cherrylane, ID
- Cherryville, ID
- Chesley, ID
- Chester, ID
- Chesterfield, ID
- Chilco, ID
- Chilly, ID
- China Hat, ID
- China Hill, ID
- Chubbuck, ID
- Clagstone, ID
- Clarendon Hot Springs, ID
- Clark Fork, ID
- Clark Tree, ID
- Clarkia, ID
- Clarkson, ID
- Clarksville, ID
- Clawson, ID
- Clayton, ID
- Claytonia, ID
- Clearwater, ID
- Cleft, ID
- Clementsville, ID
- Cleveland, ID
- Clicks, ID
- Cliffs, ID
- Clifton, ID
- Clover, ID
- Cloverdale, ID
- Clyde, ID
- Cobalt, ID
- Cocolalla, ID
- Coeur D Alene, ID
- Coeur d'Alene, ID
- Coffee Point, ID
- Colburn, ID
- Coleman, ID
- Collier Place, ID
- Collins, ID
- Coltman, ID
- Comical Turn, ID
- Concord, ID
- Concrete, ID
- Conda, ID
- Conkling Park, ID
- Connor, ID
- Coolin, ID
- Copeland, ID
- Copperville, ID
- Cora, ID
- Cornwall, ID
- Corral, ID
- Cotterel, ID
- Cotton, ID
- Cottonwood, ID
- Coulam, ID
- Council, ID
- Cow Creek, ID
- Cox, ID
- Craigmont, ID
- Crescent, ID
- Cross Trails, ID
- Crossport, ID
- Crouch, ID
- Crystal, ID
- Culdesac, ID
- Culver, ID
- Cuprum, ID
- Curry, ID
- Custer, ID
