Camp Crook, SD

Canistota, SD

Canistota Township, SD

Canton, SD

Canton Township, SD

Capital, SD

Caputa, SD

Carl, SD

Carthage, SD

Castlewood, SD

Castlewood Township, SD

Cavour, SD

Centerville, SD

Centerville Township, SD

Central City, SD

Central Lyman, SD

Central Pennington, SD

Chamberlain, SD

Chamberlain Township, SD

Chancellor, SD

Cherry Creek, SD

Chester, SD

Childstown, SD

Choteau Creek, SD

Claremont, SD

Clark, SD

Clear Lake, SD

Clear Lake, SD

Clearwater, SD

Clifton, SD

Clinton, SD

Clyde, SD

Colman, SD

Colman Township, SD

Colonial Pine Hills, SD

Colton, SD

Columbia, SD

Como, SD

Conata, SD

Corona, SD

Corsica, SD

Corson, SD

Cortlandt, SD

Cottonwood, SD

Cow Creek, SD

Cresbard, SD

Crook City, SD

Crooks, SD

Crow, SD

Custer, SD

Cambria, SD

Cameron Colony, SD

Campbell, SD

Camrose Colony, SD

Canova, SD

Carlton, SD

Carlyle, SD

Carroll, SD

Carthage Township, SD

Cash, SD

Castle Butte, SD

Cavour Township, SD

Cedar Grove Colony, SD

Cedarbutte, SD

Center, SD

Central Hyde, SD

Central Jones, SD

Central Point, SD

Central Potter, SD

Chance, SD

Chaudoin, SD

Chelsea, SD

Chery, SD

Claire City, SD

Claremont Colony, SD

Claremont Township, SD

Clark Colony, SD

Clayton, SD

Clearfield Colony, SD

Cleveland, SD

Cloverleaf Colony, SD

Cody, SD

Collins, SD

Collins Colony, SD

Colome, SD

Colome Township, SD

Columbia Township, SD

Concord, SD

Conde, SD

Condon, SD

Cooper, SD

Corn Creek, SD

Cornwall, SD

Cottonwood Lake, SD

Crandon, SD

Crocker, SD

Crooked Creek, SD

Crow Creek, SD

Crystal Lake, SD

Curlew, SD

Cactus Flats, SD

Canning, SD

Canova Township, SD

Capa, SD

Capitola, SD

Carlisle, SD

Carlock, SD

Carpenter, SD

Carter, SD

Castalia, SD

Castle Butte, SD

Castle Rock, SD

Cedar, SD

Cedar Butte, SD

Cedar Canyon, SD

Centerville, SD

Central McPherson, SD

Central Mellette, SD

Central Perkins, SD

Chester, SD

Cheyenne River Reservation, SD

Civil Bend, SD

Clare, SD

Clark, SD

Clark, SD

Clark, SD

Clarno, SD

Clear Lake, SD

Clear Lake, SD

Clear Lake Township, SD

Clearfield, SD

Cleveland, SD

Cleveland, SD

Clifton, SD

Clough, SD

Cloyd Valley, SD

Coal Springs, SD

Conde Township, SD

Cottonwood, SD

Crandall, SD

Craven, SD

Crazy Horse, SD

Creighton, SD

Cross Plains, SD

Crow Creek, SD

Crow Creek, SD

Crow Lake, SD

Custer, SD

Custer, SD