| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Rialto | city | Ohio | United States | 39.33 | -84.45 | 830 | |
| Riblet (historical) | city | Ohio | United States | 40.76 | -82.70 | 1253 | |
| Rice | city | Ohio | United States | 41.15 | -84.29 | 830 | |
| Riceland | city | Ohio | United States | 40.80 | -81.77 | 1046 | |
| Rices Mills | city | Ohio | United States | 41.49 | -80.74 | 994 | |
| Riceville (historical) | city | Ohio | United States | 39.91 | -83.80 | 997 | |
| Rich Hill | city | Ohio | United States | 40.32 | -82.73 | 1669 | |
| Rich Hill (historical) | city | Ohio | United States | 39.91 | -81.75 | 1000 | |
| Rich Valley | city | Ohio | United States | 39.68 | -81.60 | 830 | |
| Richards (historical) | city | Ohio | United States | 41.66 | -83.65 | 830 | |
| Richey | city | Ohio | United States | 40.89 | -84.65 | 830 | |
| Richfield | city | Ohio | United States | 41.24 | -81.64 | 1049 | |
| Richfield Center | city | Ohio | United States | 41.69 | -83.82 | 830 | |
| Richfield Heights | city | Ohio | United States | 41.20 | -81.63 | 1049 | |
| Richland | city | Ohio | United States | 39.19 | -82.60 | 859 | |
| Richland (historical) | city | Ohio | United States | 40.81 | -82.63 | 1669 | |
| Richland Cottage Area | city | Ohio | United States | 40.65 | -82.35 | 1095 | |
| Richlanne Acres | city | Ohio | United States | 40.01 | -83.15 | 898 | |
| Richmond | city | Ohio | United States | 40.43 | -80.77 | 1197 | |
| Richmond Center | city | Ohio | United States | 41.68 | -80.57 | 1036 | |
| Richmond Dale | city | Ohio | United States | 39.20 | -82.81 | 830 | |
| Richmond Heights | city | Ohio | United States | 41.55 | -81.51 | 898 | |
| Richmond Mobile Home Park | city | Ohio | United States | 40.83 | -81.32 | 1095 | |
| Richville | city | Ohio | United States | 40.75 | -81.48 | 1095 | |
| Richwood | city | Ohio | United States | 40.43 | -83.30 | 898 | |
| Rickard Acres | city | Ohio | United States | 39.56 | -84.37 | 830 | |
| Ridge (historical) | city | Ohio | United States | 39.40 | -84.21 | 830 | |
| Ridge Mobile Home Park | city | Ohio | United States | 40.74 | -81.37 | 997 | |
| Ridge Road Trailer Park | city | Ohio | United States | 40.94 | -84.00 | 830 | |
| Ridgedale | city | Ohio | United States | 40.83 | -81.42 | 1095 | |
| Ridgeland | city | Ohio | United States | 39.01 | -82.52 | 830 | |
| Ridgeland | city | Ohio | United States | 40.46 | -80.64 | 1013 | |
| Ridgeton | city | Ohio | United States | 40.90 | -82.94 | 997 | |
| Ridgeville | city | Ohio | United States | 39.53 | -84.18 | 892 | |
| Ridgeville Corners | city | Ohio | United States | 41.44 | -84.26 | 830 | |
| Ridgeway | city | Ohio | United States | 40.51 | -83.57 | 997 | |
| Ridgewood | city | Ohio | United States | 39.95 | -83.81 | 997 | |
| Ridgewood | city | Ohio | United States | 40.03 | -84.22 | 869 | |
| Ridgewood Acres | city | Ohio | United States | 40.02 | -81.63 | 830 | |
| Ridgewood Colony | city | Ohio | United States | 40.05 | -84.22 | 869 | |
| Ridgewood Estates | city | Ohio | United States | 40.05 | -83.11 | 830 | |
| Ridgewood Heights | city | Ohio | United States | 39.75 | -84.27 | 898 | |
| Ridgewood Mobile Home Park | city | Ohio | United States | 41.39 | -82.01 | 830 | |
| Ridpath (historical) | city | Ohio | United States | 39.83 | -83.09 | 830 | |
| Riggs | city | Ohio | United States | 41.80 | -80.54 | 1007 | |
| Riggs Subdivision | city | Ohio | United States | 41.48 | -84.43 | 830 | |
| Rigrish Addition | city | Ohio | United States | 38.78 | -82.85 | 830 | |
| Rimer | city | Ohio | United States | 40.88 | -84.21 | 830 | |
| Rinard Mills | city | Ohio | United States | 39.58 | -81.16 | 830 | |
| Rineharts (historical) | city | Ohio | United States | 40.60 | -84.03 | 1049 | |
| Ringgold | city | Ohio | United States | 39.59 | -81.98 | 997 | |
| Rio Grande | city | Ohio | United States | 38.88 | -82.38 | 830 | |
| Ripley | city | Ohio | United States | 38.75 | -83.84 | 830 | |
| Risingsun | city | Ohio | United States | 41.27 | -83.42 | 830 | |
| Risley (historical) | city | Ohio | United States | 41.14 | -82.04 | 1000 | |
| Riton (historical) | city | Ohio | United States | 39.35 | -82.97 | 830 | |
| Rittenours | city | Ohio | United States | 39.22 | -82.84 | 830 | |
| Ritters (historical) | city | Ohio | United States | 41.70 | -84.27 | 830 | |
| Rittman | city | Ohio | United States | 40.98 | -81.78 | 997 | |
| River Bend Subdivision | city | Ohio | United States | 38.88 | -82.14 | 830 | |
| River Corners | city | Ohio | United States | 41.11 | -82.09 | 846 | |
| River Edge | city | Ohio | United States | 41.42 | -81.85 | 830 | |
| River Edge Mobile Park | city | Ohio | United States | 40.81 | -82.98 | 997 | |
| River Landings | city | Ohio | United States | 40.05 | -83.11 | 830 | |
| River Styx | city | Ohio | United States | 41.06 | -81.80 | 994 | |
| River Valley Estates | city | Ohio | United States | 40.63 | -83.10 | 941 | |
| River View | city | Ohio | United States | 39.41 | -84.56 | 830 | |
| River View Heights | city | Ohio | United States | 41.54 | -83.62 | 830 | |
| Riverbend Mobile Home Park | city | Ohio | United States | 41.18 | -84.73 | 830 | |
| Riverby Estates | city | Ohio | United States | 40.28 | -83.06 | 895 | |
| Rivercrest | city | Ohio | United States | 41.55 | -83.65 | 830 | |
| Riverdale | city | Ohio | United States | 39.44 | -81.46 | 830 | |
| Riverdale | city | Ohio | United States | 39.77 | -84.19 | 830 | |
| Riverdale | city | Ohio | United States | 39.01 | -83.06 | 830 | |
| Riverdale (historical) | city | Ohio | United States | 41.49 | -83.68 | 830 | |
| Riverford | city | Ohio | United States | 41.54 | -83.67 | 830 | |
| Riverlea | city | Ohio | United States | 40.08 | -83.03 | 830 | |
| Riverside | city | Ohio | United States | 39.08 | -84.60 | 830 | |
| Riverside | city | Ohio | United States | 39.78 | -84.12 | 830 | |
| Riverside Mobile Home Park | city | Ohio | United States | 40.28 | -84.15 | 1003 | |
| Riverside Park | city | Ohio | United States | 40.38 | -81.40 | 928 | |
| Riverside Terrace | city | Ohio | United States | 38.46 | -82.32 | 830 | |
| Riverview | city | Ohio | United States | 39.98 | -81.98 | 830 | |
| Riverview | city | Ohio | United States | 40.06 | -80.74 | 830 | |
| Riverview | city | Ohio | United States | 38.44 | -82.34 | 830 | |
| Riverview | city | Ohio | United States | 39.37 | -81.53 | 830 | |
| Riverview | city | Ohio | United States | 41.18 | -80.97 | 898 | |
| Riverview Estates | city | Ohio | United States | 38.44 | -82.36 | 830 | |
| Riverview Estates | city | Ohio | United States | 40.29 | -81.75 | 830 | |
| Riverview Heights | city | Ohio | United States | 39.05 | -84.40 | 830 | |
| Riverview Mobile Home Park | city | Ohio | United States | 41.36 | -82.11 | 830 | |
| Riverview Mobile Home Park | city | Ohio | United States | 39.07 | -83.02 | 830 | |
| Riverview Mobile Home Park | city | Ohio | United States | 38.62 | -82.85 | 830 | |
| Riverview Park Subdivision | city | Ohio | United States | 41.08 | -84.71 | 830 | |
| Riverview Terrace Park | city | Ohio | United States | 41.05 | -83.68 | 830 | |
| Riverview Trailer Court | city | Ohio | United States | 41.42 | -83.83 | 830 | |
| Riviera Mobile Manor | city | Ohio | United States | 41.38 | -83.11 | 830 | |
| Riviera Park | city | Ohio | United States | 39.10 | -83.02 | 830 | |
| Rix Mills | city | Ohio | United States | 39.92 | -81.75 | 997 |