| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Arabia | city | Ohio | United States | 38.66 | -82.47 | 830 | |
| Arbar Acres | city | Ohio | United States | 40.05 | -84.19 | 862 | |
| Arbaugh | city | Ohio | United States | 39.17 | -82.34 | 830 | |
| Arbela | city | Ohio | United States | 40.48 | -83.41 | 990 | |
| Arbocrest Acres | city | Ohio | United States | 39.21 | -84.41 | 830 | |
| Arbor Crest | city | Ohio | United States | 39.39 | -84.47 | 830 | |
| Arbor Hills | city | Ohio | United States | 41.60 | -83.55 | 830 | |
| Arbors At Cheshire | city | Ohio | United States | 40.24 | -82.96 | 898 | |
| Arcadia | city | Ohio | United States | 41.11 | -83.52 | 830 | |
| Arcadian Heights | city | Ohio | United States | 40.98 | -81.44 | 1095 | |
| Arcanum | city | Ohio | United States | 39.99 | -84.55 | 1043 | |
| Archbold | city | Ohio | United States | 41.52 | -84.31 | 830 | |
| Archers Fork | city | Ohio | United States | 39.48 | -81.21 | 830 | |
| Arcola Trailer Park | city | Ohio | United States | 41.80 | -81.02 | 830 | |
| Arena (historical) | city | Ohio | United States | 41.14 | -84.63 | 830 | |
| Arhaven Estates | city | Ohio | United States | 41.22 | -80.93 | 898 | |
| Arion | city | Ohio | United States | 38.85 | -83.10 | 830 | |
| Arkoe | city | Ohio | United States | 39.04 | -83.23 | 830 | |
| Arlington | city | Ohio | United States | 41.08 | -81.49 | 951 | |
| Arlington | city | Ohio | United States | 39.87 | -84.42 | 997 | |
| Arlington | city | Ohio | United States | 40.89 | -83.65 | 830 | |
| Arlington Heights | city | Ohio | United States | 39.43 | -81.48 | 830 | |
| Arlington Heights | city | Ohio | United States | 39.22 | -84.46 | 830 | |
| Arlington Heights | city | Ohio | United States | 41.19 | -80.97 | 908 | |
| Arlington Knolls | city | Ohio | United States | 40.97 | -81.50 | 1131 | |
| Arlington Woods | city | Ohio | United States | 41.29 | -83.65 | 830 | |
| Armadale | city | Ohio | United States | 39.40 | -81.92 | 830 | |
| Armenia (historical) | city | Ohio | United States | 39.23 | -81.70 | 830 | |
| Armitage | city | Ohio | United States | 39.35 | -82.10 | 830 | |
| Armstrong | city | Ohio | United States | 40.91 | -82.01 | 1026 | |
| Armstrongs Mills | city | Ohio | United States | 39.91 | -80.93 | 1148 | |
| Arnheim | city | Ohio | United States | 38.93 | -83.83 | 925 | |
| Arnold | city | Ohio | United States | 40.14 | -83.25 | 961 | |
| Arrowhead | city | Ohio | United States | 40.55 | -81.25 | 994 | |
| Arrowhead 2 Trailer Park | city | Ohio | United States | 41.02 | -84.05 | 830 | |
| Arrowhead Beach | city | Ohio | United States | 41.70 | -81.39 | 830 | |
| Arrowhead Lake | city | Ohio | United States | 41.60 | -83.84 | 830 | |
| Arrowhead Trailer Park Number 1 | city | Ohio | United States | 40.99 | -84.20 | 830 | |
| Art Smith Trailer Park | city | Ohio | United States | 40.81 | -81.89 | 997 | |
| Artanna | city | Ohio | United States | 40.32 | -82.31 | 1095 | |
| Arthur | city | Ohio | United States | 41.19 | -84.36 | 830 |