| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ila | city | Georgia | United States | 34.17 | -83.29 | 859 | |
| Ilamo | city | Alabama | United States | 33.59 | -86.24 | 830 | |
| Ilasco | city | Missouri | United States | 39.67 | -91.31 | 830 | |
| Ilchester | city | Maryland | United States | 39.25 | -76.76 | 190 | |
| Ilcombe (historical) | city | Florida | United States | 30.13 | -83.90 | 13 | |
| Ilda | city | Virginia | United States | 38.84 | -77.25 | 396 | |
| Ilebei | city | Palau | United States | 7.66 | 134.63 | 3 | |
| Ilene | city | Indiana | United States | 38.94 | -87.11 | 830 | |
| Iler | city | Ohio | United States | 41.19 | -83.32 | 830 | |
| Iles | city | Illinois | United States | 39.77 | -89.65 | 830 | |
| Iles Grove | city | Colorado | United States | 40.34 | -107.69 | 6709 | |
| Ilesboro | city | Ohio | United States | 39.43 | -82.45 | 997 | |
| Ilexhurst | city | Florida | United States | 27.49 | -82.71 | 3 | |
| Ilfeld | city | New Mexico | United States | 35.42 | -105.56 | 6709 | |
| Ilford | city | Tennessee | United States | 36.50 | -84.06 | 1145 | |
| Ilha Fishers | city | New York | United States | 41.26 | -72.02 | 9 | |
| Ilia (historical) | city | Missouri | United States | 40.53 | -93.45 | 1092 | |
| Iliad | city | Montana | United States | 47.80 | -109.79 | 3349 | |
| Iliamna | city | Alaska | United States | 59.76 | -154.91 | 108 | |
| Iliff | city | Colorado | United States | 40.76 | -103.07 | 4189 | |
| Iliff College Hill | city | Utah | United States | 41.21 | -111.95 | 4570 | |
| Ilion | city | New York | United States | 43.02 | -75.04 | 830 | |
| Iliuliuk | city | Alaska | United States | 53.87 | -166.54 | 98 | |
| Ilium | city | Colorado | United States | 37.93 | -107.90 | 8540 | |
| Ili‘ili | city | American Samoa | United States | -14.35 | -170.75 | 78 | |
| Illahe | city | Oregon | United States | 42.63 | -124.06 | 830 | |
| Illahee | city | Washington | United States | 47.61 | -122.60 | 59 | |
| Illahee Hills | city | North Carolina | United States | 35.21 | -82.75 | 2509 | |
| Illgen City | city | Minnesota | United States | 47.35 | -91.19 | 830 | |
| Illia | city | Washington | United States | 46.68 | -117.50 | 984 | |
| Illiana | city | Illinois | United States | 40.20 | -87.53 | 830 | |
| Illiana (historical) | city | Illinois | United States | 39.80 | -87.53 | 830 | |
| Illiana Heights | city | Illinois | United States | 41.17 | -87.54 | 830 | |
| Illinoi | city | Indiana | United States | 41.19 | -87.53 | 830 | |
| Illinois Bend | city | Texas | United States | 33.88 | -97.49 | 862 | |
| Illinois Camp | city | New Mexico | United States | 32.71 | -104.21 | 3562 | |
| Illinois City | city | Illinois | United States | 41.40 | -90.90 | 830 | |
| Illinois Grove | city | Iowa | United States | 42.19 | -93.22 | 1049 | |
| Illinois Heights Colonia | city | Texas | United States | 25.94 | -97.42 | 16 | |
| Illinois Park | city | Illinois | United States | 42.05 | -88.31 | 830 | |
| Illinois Plant | city | Louisiana | United States | 30.04 | -92.91 | 3 | |
| Illinois Trailer Park | city | Florida | United States | 28.03 | -82.04 | 127 | |
| Illinoistown (historical) | city | California | United States | 39.09 | -120.96 | 2509 | |
| Illiopolis | city | Illinois | United States | 39.85 | -89.24 | 830 | |
| Illipah (historical) | city | Nevada | United States | 39.36 | -115.33 | 6758 | |
| Illmo | city | Missouri | United States | 37.22 | -89.51 | 400 | |
| Illyria | city | Iowa | United States | 42.90 | -91.64 | 1174 | |
| Ilmon | city | California | United States | 35.31 | -118.69 | 1669 | |
| Ilo (historical) | city | Idaho | United States | 46.24 | -116.50 | 4189 | |
| Ilsley | city | Kentucky | United States | 37.20 | -87.61 | 830 | |
| Iluulux̂ | city | Alaska | United States | 53.87 | -166.54 | 98 | |
| Ilwaco | city | Washington | United States | 46.31 | -124.04 | 0 |