Towns
| State | City/Town | Town Title |
|---|---|---|
| Ohio | Kenton | Kenton, OH |
| Ohio | Kerr | Kerr, OH |
| Ohio | Kettlersville | Kettlersville, OH |
| Ohio | Kidron | Kidron, OH |
| Ohio | Kilbourne | Kilbourne, OH |
| Ohio | Killbuck | Killbuck, OH |
| Ohio | Kimbolton | Kimbolton, OH |
| Ohio | Kings Mills | Kings Mills, OH |
| Ohio | Kingston | Kingston, OH |
| Ohio | Kingsville | Kingsville, OH |
| Ohio | Kinsman | Kinsman, OH |
| Ohio | Kipling | Kipling, OH |
| Ohio | Kipton | Kipton, OH |
| Ohio | Kirby | Kirby, OH |
| Ohio | Kirkersville | Kirkersville, OH |
| Ohio | Kitts Hill | Kitts Hill, OH |
| Ohio | Kunkle | Kunkle, OH |
| Ohio | La Rue | La Rue, OH |
| Ohio | Lacarne | Lacarne, OH |
| Ohio | Lafayette | Lafayette, OH |
| Ohio | Lafferty | Lafferty, OH |
| Ohio | Lagrange | Lagrange, OH |
| Ohio | Lake Milton | Lake Milton, OH |
| Ohio | Lakemore | Lakemore, OH |
| Ohio | Lakeside Marblehead | Lakeside Marblehead, OH |