| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Jackson | city | Wisconsin | United States | 43.32389 | -88.16667 | 892 | 7959 |
| Jacksonport | city | Wisconsin | United States | 44.97861 | -87.18556 | 577 | 872 |
| Jacksonville | city | Wisconsin | United States | 43.95194 | -90.5575 | 1017 | 3593 |
| Jamestown | city | Wisconsin | United States | 42.58778 | -90.54833 | 898 | 2627 |
| Janesville | city | Wisconsin | United States | 42.68278 | -89.01861 | 849 | 44248 |
| Jefferson | city | Wisconsin | United States | 43.00556 | -88.80722 | 810 | 10707 |
| Jefferson Junction | city | Wisconsin | United States | 43.03694 | -88.79 | 800 | 8033 |
| Jeffris | city | Wisconsin | United States | 45.50194 | -89.43028 | 1686 | 903 |
| Jenkinsville | city | Wisconsin | United States | 42.63472 | -90.36972 | 872 | 1016 |
| Jennings | city | Wisconsin | United States | 45.5075 | -89.07194 | 1627 | 481 |
| Jericho | city | Wisconsin | United States | 42.87833 | -88.42278 | 898 | 6254 |
| Jericho | city | Wisconsin | United States | 43.97 | -88.26639 | 1000 | 1496 |
| Jersey City | city | Wisconsin | United States | 45.48528 | -89.74444 | 1437 | 3349 |
| Jewett | city | Wisconsin | United States | 45.1175 | -92.43611 | 1053 | 2103 |
| Jim Falls | city | Wisconsin | United States | 45.04528 | -91.27278 | 1010 | 1334 |
| Jimtown | city | Wisconsin | United States | 43.35333 | -90.63833 | 1000 | 802 |
| Joel | city | Wisconsin | United States | 45.36056 | -92.23444 | 1151 | 1536 |
| Johannesburg | city | Wisconsin | United States | 45.16528 | -92.59389 | 882 | 4442 |
| Johnsburg | city | Wisconsin | United States | 43.87722 | -88.28972 | 977 | 1949 |
| Johnson | city | Wisconsin | United States | 45.01139 | -89.35583 | 1384 | 910 |
| Johnson Creek | city | Wisconsin | United States | 43.07611 | -88.77417 | 803 | 4944 |
| Johnsonville | city | Wisconsin | United States | 43.79833 | -87.90944 | 800 | 7044 |
| Johnstown | city | Wisconsin | United States | 42.7 | -88.80611 | 938 | 1520 |
| Johnstown Center | city | Wisconsin | United States | 42.69583 | -88.83944 | 938 | 2314 |
| Jonesdale | city | Wisconsin | United States | 42.89889 | -90.01333 | 1043 | 1305 |
| Jordan | city | Wisconsin | United States | 44.57472 | -89.505 | 1085 | 16521 |
| Juda | city | Wisconsin | United States | 42.58972 | -89.50583 | 839 | 1287 |
| Jump River | city | Wisconsin | United States | 45.35306 | -90.80111 | 1246 | 315 |
| Junction | city | Wisconsin | United States | 45.00972 | -90.90222 | 1200 | 1075 |
| Junction City | city | Wisconsin | United States | 44.59083 | -89.76722 | 1131 | 1125 |
| Juneau | city | Wisconsin | United States | 43.40556 | -88.705 | 902 | 3638 |
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