Ohio Cities
- Cabinet, OH
- Cable, OH
- Cadiz, OH
- Cadmus, OH
- Cairo, OH
- Calais, OH
- Calamoutier, OH
- Calcutta, OH
- Caldwell, OH
- Caledonia, OH
- Calla, OH
- Camba, OH
- Cambridge, OH
- Camden, OH
- Cameron, OH
- Camp Bennett, OH
- Camp Calvary, OH
- Camp Creek, OH
- Camp Dennison, OH
- Camp Oyo, OH
- Camp Park, OH
- Camp Roosevelt, OH
- Camp Washington, OH
- Campbell, OH
- Campbellsport, OH
- Campbellstown, OH
- Canaan, OH
- Canaanville, OH
- Canal Fulton, OH
- Canal Lewisville, OH
- Canal Winchester, OH
- Candlewood Lake, OH
- Candy Town, OH
- Canfield, OH
- Cannelville, OH
- Cannon, OH
- Cannons Creek, OH
- Canton, OH
- Canton Road, OH
- Canyon Park, OH
- Captina, OH
- Carbon Hill, OH
- Carbondale, OH
- Cardington, OH
- Carey, OH
- Careytown, OH
- Carlisle, OH
- Carlton, OH
- Carmel, OH
- Caroline, OH
- Carpenter, OH
- Carrington, OH
- Carroll, OH
- Carrollton, OH
- Carrothers, OH
- Carsey Town, OH
- Carthagena, OH
- Carthon, OH
- Carysville, OH
- Cassell, OH
- Cassella, OH
- Casstown, OH
- Cassville, OH
- Castalia, OH
- Castine, OH
- Catawba, OH
- Catawba Island, OH
- Catawba Station, OH
- Catbird, OH
- Cavallo, OH
- Cavett, OH
- Cawthorn, OH
- Caywood, OH
- Cebee, OH
- Cecil, OH
- Cedar Fork, OH
- Cedar Grove, OH
- Cedar Hill, OH
- Cedar Mills, OH
- Cedar Park, OH
- Cedar Run, OH
- Cedar Springs, OH
- Cedar Valley, OH
- Cedarville, OH
- Cedron, OH
- Celeryville, OH
- Celina, OH
- Centenary, OH
- Centennial, OH
- Center, OH
- Center Bend, OH
- Center Station, OH
- Center Village, OH
- Centerburg, OH
- Centerpoint, OH
- Centerton, OH
- Centerville, OH
- Central Avenue Park, OH
- Central College, OH
- Ceylon, OH
- Chagrin Falls, OH
- Chagrin Falls Park, OH
- Chalfants, OH
- Chambersburg, OH
- Champion, OH
- Champion Heights, OH
- Chandler, OH
- Chandlersville, OH
- Chapel Hill, OH
- Chapman, OH
- Chardon, OH
- Charles Mill, OH
- Charlestown, OH
- Charloe, OH
- Charm, OH
- Chase, OH
- Chasetown, OH
- Chaseville, OH
- Chatfield, OH
- Chatham, OH
- Chattanooga, OH
- Chauncey, OH
- Chautauqua, OH
- Chenoweth, OH
- Cherokee, OH
- Cherry Fork, OH
- Cherry Grove, OH
- Cherry Valley, OH
- Chesapeake, OH
- Cheshire, OH
- Chesswood Acres, OH
- Chester, OH
- Chester Center, OH
- Chesterhill, OH
- Chesterland, OH
- Chesterville, OH
- Cheviot, OH
- Chickasaw, OH
- Chickwan, OH
- Chili, OH
- Chillicothe, OH
- Chilo, OH
- Chippewa Lake, OH
- Chippewa Lake Park, OH
- Chippewa Park, OH
- Choctaw Lake, OH
- Chrisman, OH
- Christiansburg, OH
- Christy, OH
- Christytown, OH
- Chuckery, OH
- Churchill, OH
- Churchtown, OH
- Cincinnati, OH
- Cinnamon Lake, OH
- Circle Green, OH
- Circle Hill, OH
- Circleville, OH
- City View Heights, OH
- Claiborne, OH
- Clare, OH
- Claridon, OH
- Clarington, OH
- Clarion, OH
- Clark, OH
- Clarksburg, OH
- Clarksfield, OH
- Clarkson, OH
- Clarksville, OH
- Clarktown, OH
- Clay, OH
- Clay Center, OH
- Claylick, OH
- Claysville, OH
- Clayton, OH
- Clearport, OH
- Clearview, OH
- Clement, OH
- Clermontville, OH
- Cleveland, OH
- Cleveland Heights, OH
- Cleves, OH
- Clifford, OH
- Clifton, OH
- Climax, OH
- Cline, OH
- Clinton, OH
- Clipper Mills, OH
- Clough Heights, OH
- Clover, OH
- Clover Hill, OH
- Cloverdale, OH
- Clyde, OH
- Coal Grove, OH
- Coal Hill, OH
- Coal Ridge, OH
- Coal Run, OH
- Coalburg, OH
- Coalgate, OH
- Coalton, OH
- Coats, OH
- Cockrell Run, OH
- Coddingville, OH
- Coitsville Center, OH
- Colby, OH
- Coldstream, OH
- Coldwater, OH
- Cole, OH
- Colebrook, OH
- Coleman, OH
- Colerain, OH
- Colerain Heights, OH
- Coles Park, OH
- Coletown, OH
- Colfax, OH
- College Corner, OH
- College Hill, OH
- Collins, OH
- Collinsville, OH
- Colton, OH
- Columbia, OH
- Columbia Center, OH
- Columbia Station, OH
- Columbiana, OH
- Columbus, OH
- Columbus Grove, OH
- Comet, OH
- Commercial Point, OH
- Compton Park, OH
- Conant, OH
- Concord, OH
- Concorde Hills, OH
- Condit, OH
- Conesville, OH
- Congo, OH
- Congress, OH
- Conneaut, OH
- Connett, OH
- Connor, OH
- Connorville, OH
- Conotton, OH
- Conover, OH
- Constitution, OH
- Continental, OH
- Contreras, OH
- Converse, OH
- Converse Station, OH
- Convoy, OH
- Conway Addition, OH
- Cook, OH
- Coolville, OH
- Cooney, OH
- Coonville, OH
- Cooper, OH
- Cooperdale, OH
- Coopersville, OH
- Copley, OH
- Cora, OH
- Corinth, OH
- Cork, OH
- Cornelion, OH
- Corner, OH
- Cornerville, OH
- Corning, OH
- Corryville, OH
- Cortland, OH
- Cortsville, OH
- Corwin, OH
- Coryville, OH
- Coshocton, OH
- Cosmos, OH
- Costonia, OH
- Cotillion Village, OH
- Cottage Grove, OH
- Cottage Hill, OH
- Coulter, OH
- Country Club Acres, OH
- Covedale, OH
- Covington, OH
- Cow Run, OH
- Cowlesville, OH
- Cozaddale, OH
- Crabapple, OH
- Crabtree, OH
- Craig Beach, OH
- Craigton, OH
- Cranberry Prairie, OH
- Cranenest, OH
- Craver, OH
- Crawford, OH
- Crayon, OH
- Creola, OH
- Crescent, OH
- Cresceus Farms, OH
- Crestline, OH
- Creston, OH
- Crestwood Acres, OH
- Cridersville, OH
- Crimson, OH
- Crissey, OH
- Cromers, OH
- Crooked Tree, OH
- Crooksville, OH
- Crossenville, OH
- Crossroads, OH
- Crosstown, OH
- Crosswick, OH
- Croswell, OH
- Croton, OH
- Crown City, OH
- Crownover Mill, OH
- Crystal Lakes, OH
- Crystal Rock, OH
- Crystal Springs, OH
- Cuba, OH
- Culler Mill, OH
- Cumberland, OH
- Cunningham, OH
- Curtice, OH
- Custar, OH
- Cutler, OH
- Cuyahoga Falls, OH
- Cuyahoga Heights, OH
- Cyclorama Heights, OH
- Cygnet, OH
- Cynthiana, OH
