| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Jacobs | city | Kansas | United States | 38.61194 | -97.03056 | 1384 | 494 |
| Jacobs Creek Landing | city | Kansas | United States | 38.26528 | -95.86944 | 1099 | 464 |
| Jamestown | city | Kansas | United States | 39.59944 | -97.86083 | 1443 | 239 |
| Jarbalo | city | Kansas | United States | 39.20194 | -95.06889 | 898 | 2630 |
| Jefferson | city | Kansas | United States | 37.11222 | -95.76111 | 797 | 676 |
| Jenkins | city | Kansas | United States | 38.55 | -97.72167 | 1381 | 1695 |
| Jennings | city | Kansas | United States | 39.67944 | -100.29306 | 2499 | 75 |
| Jetmore | city | Kansas | United States | 38.08444 | -99.89306 | 2257 | 117 |
| Jewell | city | Kansas | United States | 39.67139 | -98.15333 | 1548 | 246 |
| Jingo | city | Kansas | United States | 38.40389 | -94.69583 | 951 | 949 |
| Johnson | city | Kansas | United States | 37.57056 | -101.75056 | 3333 | 159 |
| Johnstown | city | Kansas | United States | 38.49278 | -97.67528 | 1443 | 1095 |
| Jonesburg historical | city | Kansas | United States | 37.00417 | -96.10417 | 823 | 302 |
| Joy | city | Kansas | United States | 37.59528 | -99.39444 | 2290 | 232 |
| Julian subdivision | city | Kansas | United States | 37.56194 | -101.62611 | 3221 | 159 |
| Junction City | city | Kansas | United States | 39.02861 | -96.83111 | 1089 | 21441 |
| Juniata | city | Kansas | United States | 38.91528 | -97.96444 | 1397 | 238 |
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