| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Jackson | city | New Hampshire | United States | 44.14417 | -71.18139 | 928 | 687 |
| Jackson Falls | city | New Hampshire | United States | 44.14806 | -71.18167 | 800 | 687 |
| Jady Hill | city | New Hampshire | United States | 42.98583 | -70.94389 | 52 | 17909 |
| Jaffrey | city | New Hampshire | United States | 42.81389 | -72.02361 | 1010 | 5281 |
| Jaffrey Center | city | New Hampshire | United States | 42.82778 | -72.05556 | 1095 | 5105 |
| James City | city | New Hampshire | United States | 43.14306 | -71.23472 | 396 | 3057 |
| Jefferson | city | New Hampshire | United States | 44.41889 | -71.475 | 1328 | 861 |
| Jefferson Highland | city | New Hampshire | United States | 44.385 | -71.4225 | 1377 | 453 |
| Jericho | city | New Hampshire | United States | 44.14389 | -71.84944 | 1499 | 992 |
| Jericho | city | New Hampshire | United States | 44.10778 | -71.20444 | 600 | 1007 |
| Jockey Hill | city | New Hampshire | United States | 44.18639 | -71.90611 | 898 | 1025 |
| Johnson Corner | city | New Hampshire | United States | 42.88861 | -71.73472 | 725 | 4879 |
| Jones Corner | city | New Hampshire | United States | 42.73722 | -72.02278 | 1161 | 6597 |
| Jones Mills | city | New Hampshire | United States | 43.39444 | -71.41472 | 725 | 2787 |
| Joslin | city | New Hampshire | United States | 42.90917 | -72.25611 | 521 | 14194 |
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