| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Cabinet | city | Ohio | United States | 40.12 | -81.22 | 1151 | |
| Cabinville (historical) | city | Ohio | United States | 39.70 | -81.73 | 830 | |
| Cable | city | Ohio | United States | 40.17 | -83.63 | 1204 | |
| Cadiz | city | Ohio | United States | 40.27 | -81.00 | 1200 | |
| Cadiz Junction | city | Ohio | United States | 40.36 | -80.93 | 1197 | |
| Cadmus | city | Ohio | United States | 38.77 | -82.44 | 830 | |
| Cains Mobile Home Park | city | Ohio | United States | 39.70 | -84.21 | 830 | |
| Cairo | city | Ohio | United States | 40.90 | -81.36 | 1197 | |
| Cairo | city | Ohio | United States | 40.83 | -84.09 | 830 | |
| Calais | city | Ohio | United States | 39.86 | -81.28 | 1000 | |
| Calamoutier | city | Ohio | United States | 40.67 | -81.78 | 1243 | |
| Calcutta | city | Ohio | United States | 40.67 | -80.58 | 1194 | |
| Caldwell | city | Ohio | United States | 39.75 | -81.52 | 830 | |
| Caldwells Addition | city | Ohio | United States | 41.19 | -83.42 | 830 | |
| Caledonia | city | Ohio | United States | 40.64 | -82.97 | 984 | |
| California | city | Ohio | United States | 39.07 | -84.42 | 830 | |
| Calla | city | Ohio | United States | 40.97 | -80.77 | 1194 | |
| Calm (historical) | city | Ohio | United States | 41.69 | -81.00 | 1023 | |
| Calumet | city | Ohio | United States | 40.48 | -80.61 | 830 | |
| Camba | city | Ohio | United States | 38.96 | -82.61 | 830 | |
| Cambridge | city | Ohio | United States | 40.03 | -81.59 | 830 | |
| Camden | city | Ohio | United States | 41.24 | -82.31 | 853 | |
| Camden | city | Ohio | United States | 39.63 | -84.65 | 918 | |
| Camelot Hills | city | Ohio | United States | 40.95 | -81.50 | 1151 | |
| Camelot South | city | Ohio | United States | 41.52 | -84.00 | 830 | |
| Camelot Village | city | Ohio | United States | 41.26 | -81.34 | 1197 | |
| Cameron | city | Ohio | United States | 39.77 | -80.94 | 830 | |
| Camp | city | Ohio | United States | 38.97 | -83.12 | 830 | |
| Camp Bennett | city | Ohio | United States | 38.77 | -82.86 | 830 | |
| Camp Calvary | city | Ohio | United States | 41.94 | -80.63 | 830 | |
| Camp Creek | city | Ohio | United States | 40.73 | -81.57 | 1030 | |
| Camp Dennison | city | Ohio | United States | 39.20 | -84.29 | 830 | |
| Camp Luther | city | Ohio | United States | 41.94 | -80.65 | 830 | |
| Camp Oyo | city | Ohio | United States | 38.73 | -83.15 | 830 | |
| Camp Park | city | Ohio | United States | 41.07 | -80.79 | 1013 | |
| Camp Roosevelt | city | Ohio | United States | 41.79 | -81.17 | 830 | |
| Camp Washington | city | Ohio | United States | 39.14 | -84.54 | 830 | |
| Campbell | city | Ohio | United States | 41.08 | -80.60 | 849 | |
| Campbellsport | city | Ohio | United States | 41.14 | -81.20 | 1007 | |
| Campbellstown | city | Ohio | United States | 39.79 | -84.76 | 1194 | |
| Campus | city | Ohio | United States | 40.70 | -80.67 | 1017 | |
| Campus Court | city | Ohio | United States | 39.61 | -82.91 | 830 | |
| Canaan | city | Ohio | United States | 40.94 | -81.94 | 1099 | |
| Canaan Community Mobile Home Park | city | Ohio | United States | 40.02 | -83.26 | 898 | |
| Canaanville | city | Ohio | United States | 39.32 | -81.99 | 830 | |
| Canada (historical) | city | Ohio | United States | 39.24 | -82.84 | 830 | |
| Canal Fulton | city | Ohio | United States | 40.89 | -81.60 | 997 | |
| Canal Lewisville | city | Ohio | United States | 40.30 | -81.84 | 830 | |
| Canal Winchester | city | Ohio | United States | 39.84 | -82.80 | 830 | |
| Canalport | city | Ohio | United States | 41.12 | -84.43 | 830 | |
| Candlelight Villas | city | Ohio | United States | 40.55 | -81.49 | 964 | |
| Candy Town | city | Ohio | United States | 39.48 | -82.23 | 898 | |
| Candyce Grove | city | Ohio | United States | 41.60 | -83.55 | 830 | |
| Canellas Park | city | Ohio | United States | 40.38 | -80.72 | 1082 | |
| Canfield | city | Ohio | United States | 41.03 | -80.76 | 1145 | |
| Cannelville | city | Ohio | United States | 39.81 | -82.00 | 830 | |
| Cannon | city | Ohio | United States | 39.83 | -82.14 | 830 | |
| Cannons Creek | city | Ohio | United States | 38.65 | -82.63 | 830 | |
| Cannons Mill | city | Ohio | United States | 40.68 | -80.61 | 1072 | |
| Cannonsburg | city | Ohio | United States | 40.91 | -83.78 | 830 | |
| Canterbury Colony | city | Ohio | United States | 41.45 | -81.92 | 830 | |
| Canterbury Estates | city | Ohio | United States | 41.44 | -81.91 | 830 | |
| Canterbury Manor | city | Ohio | United States | 41.46 | -81.91 | 830 | |
| Canton | city | Ohio | United States | 40.80 | -81.38 | 1089 | |
| Canton Gardens | city | Ohio | United States | 40.85 | -81.40 | 1095 | |
| Canton Mobile Homes | city | Ohio | United States | 40.73 | -81.41 | 997 | |
| Canton Road | city | Ohio | United States | 40.75 | -81.52 | 997 | |
| Canyon Park | city | Ohio | United States | 41.08 | -81.00 | 1003 | |
| Canyon Villa Estates | city | Ohio | United States | 39.98 | -82.51 | 905 | |
| Capel Vale | city | Ohio | United States | 41.46 | -81.93 | 830 | |
| Capri Mobile Home Park | city | Ohio | United States | 40.91 | -82.66 | 1095 | |
| Captina | city | Ohio | United States | 39.89 | -80.87 | 830 | |
| Carbon Hill | city | Ohio | United States | 39.50 | -82.24 | 830 | |
| Carbondale | city | Ohio | United States | 39.38 | -82.27 | 830 | |
| Cardington | city | Ohio | United States | 40.50 | -82.89 | 997 | |
| Carefree Estates | city | Ohio | United States | 40.89 | -82.65 | 1095 | |
| Carey | city | Ohio | United States | 39.49 | -83.10 | 830 | |
| Carey | city | Ohio | United States | 40.95 | -83.38 | 830 | |
| Carey Mobile Home Estates | city | Ohio | United States | 40.95 | -83.37 | 830 | |
| Carey Mobile Home Park | city | Ohio | United States | 40.96 | -83.38 | 830 | |
| Careytown | city | Ohio | United States | 39.31 | -83.63 | 1128 | |
| Carie Hill Estates | city | Ohio | United States | 40.83 | -81.50 | 1095 | |
| Carletonville | city | Ohio | United States | 39.01 | -81.98 | 830 | |
| Carlisle | city | Ohio | United States | 39.58 | -84.32 | 830 | |
| Carlisle | city | Ohio | United States | 39.75 | -81.36 | 830 | |
| Carlton | city | Ohio | United States | 38.96 | -82.10 | 830 | |
| Carlwick (historical) | city | Ohio | United States | 39.92 | -81.90 | 830 | |
| Carman | city | Ohio | United States | 40.36 | -80.88 | 1099 | |
| Carmel | city | Ohio | United States | 39.17 | -83.41 | 1036 | |
| Carmen Place | city | Ohio | United States | 39.42 | -84.58 | 830 | |
| Carmonte | city | Ohio | United States | 39.72 | -84.20 | 866 | |
| Caroline | city | Ohio | United States | 41.05 | -82.89 | 948 | |
| Carpenter | city | Ohio | United States | 39.16 | -82.22 | 830 | |
| Carpenters Addition | city | Ohio | United States | 39.71 | -82.60 | 898 | |
| Carpenters Corners | city | Ohio | United States | 40.67 | -83.23 | 898 | |
| Carpenters Mobile Home Park | city | Ohio | United States | 40.87 | -82.29 | 997 | |
| Carriage Acres | city | Ohio | United States | 40.24 | -83.35 | 997 | |
| Carriage Crossing | city | Ohio | United States | 40.07 | -84.26 | 921 | |
| Carriage Park Estates | city | Ohio | United States | 41.47 | -81.92 | 830 | |
| Carriage Run | city | Ohio | United States | 40.03 | -83.15 | 898 | |
| Carrington | city | Ohio | United States | 39.60 | -82.16 | 830 | |
| Carrington | city | Ohio | United States | 40.87 | -81.51 | 1085 | |
| Carrington Place | city | Ohio | United States | 40.06 | -83.14 | 892 | |
| Carrington Woods | city | Ohio | United States | 41.53 | -83.69 | 830 | |
| Carroll | city | Ohio | United States | 39.80 | -82.70 | 846 | |
| Carroll View Terrace | city | Ohio | United States | 40.58 | -81.10 | 1095 | |
| Carrollton | city | Ohio | United States | 40.57 | -81.09 | 1095 | |
| Carrothers | city | Ohio | United States | 41.00 | -82.92 | 954 | |
| Carruthers Trailer Park | city | Ohio | United States | 40.00 | -81.68 | 830 | |
| Cars Run (historical) | city | Ohio | United States | 39.10 | -82.87 | 938 | |
| Carsey Town | city | Ohio | United States | 39.25 | -82.01 | 830 | |
| Carson Farms | city | Ohio | United States | 40.30 | -83.10 | 948 | |
| Carter (historical) | city | Ohio | United States | 39.56 | -81.24 | 830 | |
| Carters (historical) | city | Ohio | United States | 39.94 | -83.36 | 997 | |
| Carthage | city | Ohio | United States | 39.20 | -84.48 | 830 | |
| Carthagena | city | Ohio | United States | 40.44 | -84.56 | 902 | |
| Carthon | city | Ohio | United States | 39.75 | -82.33 | 898 | |
| Carvel Manor Mobile Home Park | city | Ohio | United States | 39.72 | -83.02 | 830 | |
| Carysville | city | Ohio | United States | 40.21 | -83.98 | 1105 | |
| Cascade | city | Ohio | United States | 41.02 | -84.29 | 830 | |
| Cascade (historical) | city | Ohio | United States | 41.09 | -81.52 | 1003 | |
| Cassell | city | Ohio | United States | 40.01 | -81.66 | 977 | |
| Cassella | city | Ohio | United States | 40.41 | -84.55 | 944 | |
| Cassellview | city | Ohio | United States | 40.00 | -81.67 | 974 | |
| Casstown | city | Ohio | United States | 40.05 | -84.13 | 931 | |
| Cassville | city | Ohio | United States | 40.23 | -81.10 | 1197 | |
| Castalia | city | Ohio | United States | 41.40 | -82.81 | 830 | |
| Caster Subdivision | city | Ohio | United States | 41.53 | -84.52 | 830 | |
| Castine | city | Ohio | United States | 39.93 | -84.62 | 1099 | |
| Castle Farms | city | Ohio | United States | 39.87 | -83.09 | 830 | |
| Castlewood Trailer Court | city | Ohio | United States | 39.81 | -84.22 | 830 | |
| Catalina Mobile Home Park | city | Ohio | United States | 39.55 | -84.39 | 830 | |
| Catalpa Grove | city | Ohio | United States | 41.32 | -83.06 | 830 | |
| Catalpa Grove Mobile Home Park | city | Ohio | United States | 39.79 | -84.27 | 862 | |
| Catawba | city | Ohio | United States | 40.00 | -83.62 | 1207 | |
| Catawba Island | city | Ohio | United States | 41.59 | -82.84 | 830 | |
| Catawba Station | city | Ohio | United States | 40.03 | -83.65 | 1085 | |
| Catbird | city | Ohio | United States | 38.74 | -83.55 | 892 | |
| Cavallo | city | Ohio | United States | 40.41 | -82.18 | 898 | |
| Cavett | city | Ohio | United States | 40.95 | -84.58 | 830 | |
| Cawthorn | city | Ohio | United States | 39.48 | -82.20 | 830 | |
| Caywood | city | Ohio | United States | 39.46 | -81.39 | 830 |