| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Iatt | city | Louisiana | United States | 31.68611 | -92.70639 | 147 | 838 |
| Iberville | city | Louisiana | United States | 30.29583 | -91.11667 | 19 | 17762 |
| Iberville Terrace | city | Louisiana | United States | 30.36889 | -91.08944 | 29 | 44419 |
| Ida | city | Louisiana | United States | 33.00417 | -93.89472 | 249 | 1094 |
| Idlewild | city | Louisiana | United States | 29.67806 | -91.29333 | 3 | 9452 |
| Idlewild | city | Louisiana | United States | 29.64194 | -90.7575 | 6 | 25918 |
| Idlewood subdivision | city | Louisiana | United States | 30.03194 | -89.95639 | 3 | 63495 |
| Ikes | city | Louisiana | United States | 30.87389 | -93.2175 | 137 | 7157 |
| Illinois Plant | city | Louisiana | United States | 30.03917 | -92.91139 | 3 | 439 |
| Immaculata | city | Louisiana | United States | 30.72472 | -91.97083 | 22 | 1750 |
| Independence | city | Louisiana | United States | 30.63528 | -90.50083 | 82 | 7584 |
| Independence Place subdivision | city | Louisiana | United States | 30.42861 | -91.08194 | 36 | 104467 |
| Independent | city | Louisiana | United States | 30.03222 | -91.85056 | 19 | 32797 |
| Indian Bayou | city | Louisiana | United States | 30.12583 | -92.2425 | 19 | 3344 |
| Indian Beach | city | Louisiana | United States | 30.01889 | -90.14111 | 3 | 153036 |
| Indian Hills Estates | city | Louisiana | United States | 32.60222 | -93.86333 | 272 | 8069 |
| Indian Lake Estates | city | Louisiana | United States | 32.55167 | -92.23917 | 190 | 13672 |
| Indian Landing | city | Louisiana | United States | 32.28 | -91.52333 | 72 | 678 |
| Indian Park | city | Louisiana | United States | 30.35667 | -91.13333 | 19 | 41169 |
| Indian Village | city | Louisiana | United States | 30.44889 | -92.97167 | 26 | 1019 |
| Indian Village | city | Louisiana | United States | 32.47278 | -92.41167 | 196 | 2526 |
| Indian Village | city | Louisiana | United States | 30.25722 | -91.31389 | 3 | 2107 |
| Ingleside | city | Louisiana | United States | 30.60444 | -91.42806 | 22 | 3021 |
| Ingleside | city | Louisiana | United States | 29.89806 | -90.9875 | 13 | 2590 |
| Inglewood | city | Louisiana | United States | 31.22972 | -92.42111 | 68 | 22143 |
| Innis | city | Louisiana | United States | 30.87778 | -91.68056 | 29 | 691 |
| Inniswold | city | Louisiana | United States | 30.40472 | -91.08333 | 29 | 84464 |
| Inniswold Estates subdivision | city | Louisiana | United States | 30.40139 | -91.0875 | 22 | 89202 |
| Insco historical | city | Louisiana | United States | 30.63944 | -93.24583 | 101 | 769 |
| Intracoastal City | city | Louisiana | United States | 29.78417 | -92.15611 | 3 | 588 |
| Invincible | city | Louisiana | United States | 32.78722 | -93.4075 | 226 | 2102 |
| Iota | city | Louisiana | United States | 30.33111 | -92.49556 | 26 | 2019 |
| Iowa | city | Louisiana | United States | 30.23667 | -93.01361 | 22 | 4109 |
| Irene | city | Louisiana | United States | 30.61222 | -91.23 | 59 | 9267 |
| Irish Bend | city | Louisiana | United States | 29.81861 | -91.45306 | 9 | 5419 |
| Irma | city | Louisiana | United States | 31.79972 | -93.01222 | 108 | 5866 |
| Ironton | city | Louisiana | United States | 29.64861 | -89.96139 | 3 | 703 |
| Irvings historical | city | Louisiana | United States | 30.87306 | -89.83667 | 111 | 5612 |
| Isabel | city | Louisiana | United States | 30.67472 | -89.99889 | 91 | 2416 |
| Island | city | Louisiana | United States | 30.67639 | -91.39083 | 22 | 5044 |
| Isle Labbe | city | Louisiana | United States | 30.16528 | -91.77639 | 13 | 4244 |
| Isle of Cuba | city | Louisiana | United States | 29.72194 | -90.8175 | 6 | 21180 |
| Islington historical | city | Louisiana | United States | 32.3325 | -91.18333 | 72 | 267 |
| Istrouma | city | Louisiana | United States | 30.47889 | -91.15972 | 59 | 127524 |
| Ithra | city | Louisiana | United States | 30.46111 | -91.27472 | 13 | 7654 |
| Ivan | city | Louisiana | United States | 32.79417 | -93.53528 | 229 | 1745 |
| Ivanhoe | city | Louisiana | United States | 29.7825 | -91.73972 | 6 | 1026 |
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