| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Jackson | city | Ohio | United States | 40.71139 | -82.74583 | 1220 | 13290 |
| Jackson | city | Ohio | United States | 39.05194 | -82.63667 | 698 | 9045 |
| Jackson | city | Ohio | United States | 40.96028 | -81.89944 | 997 | 6205 |
| Jackson Center | city | Ohio | United States | 40.43944 | -84.04028 | 997 | 2214 |
| Jackson Heights | city | Ohio | United States | 39.03139 | -82.62806 | 698 | 7969 |
| Jackson Heights | city | Ohio | United States | 40.17556 | -80.70417 | 859 | 9435 |
| Jackson Special | city | Ohio | United States | 39.99333 | -81.57361 | 800 | 14430 |
| Jackson historical | city | Ohio | United States | 39.95556 | -81.93306 | 875 | 10430 |
| Jacksonburg | city | Ohio | United States | 39.53833 | -84.5025 | 898 | 8363 |
| Jacksontown | city | Ohio | United States | 39.95944 | -82.41306 | 1049 | 7000 |
| Jacksonville | city | Ohio | United States | 39.95861 | -83.86472 | 997 | 29309 |
| Jacksonville | city | Ohio | United States | 38.90806 | -83.44 | 800 | 1649 |
| Jacksonville | city | Ohio | United States | 39.475 | -82.08194 | 698 | 3872 |
| Jacksonville | city | Ohio | United States | 40.37222 | -80.61167 | 839 | 40546 |
| Jacobsburg | city | Ohio | United States | 39.75889 | -81.24861 | 1197 | 1917 |
| Jacobsburg | city | Ohio | United States | 39.965 | -80.90444 | 1197 | 2832 |
| Jaite | city | Ohio | United States | 41.28833 | -81.57389 | 662 | 13670 |
| Jamestown | city | Ohio | United States | 39.65806 | -83.735 | 1069 | 4636 |
| Jarrett Wood Subdivision | city | Ohio | United States | 41.17778 | -84.76028 | 702 | 2702 |
| Jarvis | city | Ohio | United States | 39.36944 | -82.89028 | 797 | 6041 |
| Jasper | city | Ohio | United States | 39.05 | -83.05667 | 600 | 2878 |
| Jasper Mills | city | Ohio | United States | 39.51861 | -83.52056 | 997 | 3598 |
| Jaybird | city | Ohio | United States | 38.93944 | -83.29833 | 656 | 1976 |
| Jaysville | city | Ohio | United States | 40.04806 | -84.59917 | 1046 | 12272 |
| Jeddoe | city | Ohio | United States | 41.27694 | -81.145 | 1141 | 7309 |
| Jefferson | city | Ohio | United States | 39.81389 | -82.76083 | 898 | 12103 |
| Jefferson | city | Ohio | United States | 40.80167 | -82.02306 | 1108 | 7212 |
| Jefferson | city | Ohio | United States | 41.73861 | -80.77 | 925 | 4255 |
| Jefferson Estates | city | Ohio | United States | 41.585 | -84.49889 | 797 | 2537 |
| Jefferson Estates | city | Ohio | United States | 39.56667 | -82.9525 | 698 | 15922 |
| Jefferson Heights subdivision | city | Ohio | United States | 40.33972 | -80.64167 | 990 | 36536 |
| Jeffersonville | city | Ohio | United States | 39.65361 | -83.56389 | 997 | 1671 |
| Jeffersonville historical | city | Ohio | United States | 40.34778 | -80.61667 | 698 | 40546 |
| Jelloway | city | Ohio | United States | 40.53667 | -82.30028 | 1197 | 2834 |
| Jenera | city | Ohio | United States | 40.89972 | -83.72694 | 836 | 1874 |
| Jericho | city | Ohio | United States | 39.54778 | -84.67444 | 977 | 11089 |
| Jericho | city | Ohio | United States | 39.39139 | -84.37111 | 875 | 28929 |
| Jericho | city | Ohio | United States | 39.6175 | -81.10639 | 800 | 1033 |
| Jerles historical | city | Ohio | United States | 39.73861 | -81.29528 | 1000 | 941 |
| Jerome | city | Ohio | United States | 40.16639 | -83.17583 | 941 | 12447 |
| Jeromesville | city | Ohio | United States | 40.80417 | -82.19583 | 1122 | 3122 |
| Jerry City | city | Ohio | United States | 41.25389 | -83.60444 | 695 | 1785 |
| Jerrys First Addition subdivision | city | Ohio | United States | 41.49861 | -84.57472 | 797 | 12351 |
| Jersey | city | Ohio | United States | 40.05361 | -82.72333 | 1095 | 7459 |
| Jerusalem | city | Ohio | United States | 39.12083 | -84.51556 | 652 | 239048 |
| Jerusalem | city | Ohio | United States | 39.85167 | -81.0925 | 1197 | 1515 |
| Jessup | city | Ohio | United States | 39.025 | -83.53306 | 898 | 1995 |
| Jethro | city | Ohio | United States | 40.62528 | -80.59528 | 698 | 24717 |
| Jewell | city | Ohio | United States | 41.32583 | -84.28556 | 698 | 3807 |
| Jewett | city | Ohio | United States | 40.36778 | -81.00556 | 1089 | 2079 |
| Jim Town | city | Ohio | United States | 41.64361 | -84.60222 | 862 | 4203 |
| Jimtown | city | Ohio | United States | 39.35333 | -82.72306 | 695 | 1763 |
| Jimtown | city | Ohio | United States | 40.82028 | -80.53472 | 1030 | 9220 |
| Jimtown historical | city | Ohio | United States | 40.11083 | -84.27833 | 944 | 19323 |
| Jobs | city | Ohio | United States | 39.50028 | -82.17917 | 800 | 3607 |
| Joe historical | city | Ohio | United States | 39.64722 | -82.40778 | 997 | 3027 |
| Joetown | city | Ohio | United States | 39.66556 | -81.92611 | 997 | 1752 |
| Johns Creek historical | city | Ohio | United States | 38.67111 | -82.56889 | 767 | 1347 |
| Johnson | city | Ohio | United States | 39.54722 | -83.33056 | 898 | 1447 |
| Johnsons Corners | city | Ohio | United States | 40.96028 | -81.84167 | 984 | 9651 |
| Johnsons Corners | city | Ohio | United States | 41.00583 | -81.63889 | 1010 | 45323 |
| Johnsons Subdivision | city | Ohio | United States | 41.52417 | -83.49083 | 639 | 9709 |
| Johnston | city | Ohio | United States | 40.54528 | -81.36972 | 1040 | 4263 |
| Johnston | city | Ohio | United States | 41.38861 | -80.66583 | 1066 | 3581 |
| Johnston Corners | city | Ohio | United States | 41.61639 | -83.66528 | 600 | 104908 |
| Johnstown | city | Ohio | United States | 40.15361 | -82.68528 | 1125 | 5896 |
| Johnsville | city | Ohio | United States | 39.74528 | -84.42361 | 898 | 7410 |
| Jones | city | Ohio | United States | 40.27444 | -83.01472 | 918 | 16949 |
| Jones City | city | Ohio | United States | 40.88139 | -84.18167 | 744 | 2899 |
| Jones Corner | city | Ohio | United States | 38.81972 | -83.2925 | 698 | 1267 |
| Jones Farm | city | Ohio | United States | 39.24639 | -84.33944 | 698 | 77214 |
| Jones historical | city | Ohio | United States | 39.32917 | -84.50306 | 695 | 92080 |
| Jonesboro | city | Ohio | United States | 39.30194 | -83.82528 | 1000 | 2344 |
| Jonesboro | city | Ohio | United States | 39.53 | -83.47944 | 997 | 8863 |
| Jonestown | city | Ohio | United States | 40.77139 | -84.51417 | 797 | 1682 |
| Jonestown | city | Ohio | United States | 39.095 | -82.6325 | 797 | 6177 |
| Joppa | city | Ohio | United States | 41.36444 | -82.43056 | 649 | 6009 |
| Joppa | city | Ohio | United States | 39.15278 | -81.79861 | 800 | 1943 |
| Jordanville | city | Ohio | United States | 40.76972 | -80.75639 | 1164 | 5978 |
| Josephatowa | city | Ohio | United States | 41.51389 | -81.67 | 626 | 102250 |
| Joy | city | Ohio | United States | 39.47028 | -81.94111 | 800 | 1414 |
| Joyce | city | Ohio | United States | 40.455 | -81.50306 | 997 | 5573 |
| Jug Run | city | Ohio | United States | 40.21194 | -80.74778 | 797 | 5940 |
| Jugs Corners | city | Ohio | United States | 40.68083 | -82.64556 | 1397 | 6732 |
| Julia historical | city | Ohio | United States | 41.3475 | -81.26278 | 1200 | 9256 |
| Jumbo | city | Ohio | United States | 40.595 | -83.75806 | 1049 | 1640 |
| Jump | city | Ohio | United States | 40.61583 | -83.79444 | 997 | 1705 |
| Junction | city | Ohio | United States | 41.19306 | -84.45861 | 698 | 2033 |
| Junction City | city | Ohio | United States | 39.72111 | -82.29889 | 898 | 2632 |
| Junior Furnace | city | Ohio | United States | 38.62306 | -82.80917 | 600 | 4154 |
| Justus | city | Ohio | United States | 40.70444 | -81.57917 | 1000 | 7101 |
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