| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Ioka | city | Utah | United States | 40.25861 | -110.11306 | 5400 | 1136 |
| Ioka historical | city | Iowa | United States | 41.1825 | -92.12889 | 839 | 754 |
| Iola | city | Texas | United States | 30.77167 | -96.07472 | 347 | 565 |
| Iola | city | Kansas | United States | 37.92444 | -95.39972 | 954 | 6786 |
| Iola | city | Wisconsin | United States | 44.50806 | -89.13056 | 948 | 1763 |
| Iola | city | Illinois | United States | 38.83444 | -88.62806 | 508 | 772 |
| Iola | city | Kentucky | United States | 36.89972 | -88.41472 | 370 | 6005 |
| Iola | city | Florida | United States | 30.14861 | -85.16528 | 19 | 822 |
| Iola | city | Pennsylvania | United States | 41.13639 | -76.53194 | 692 | 2764 |
| Iola historical | city | Colorado | United States | 38.475 | -107.09667 | 7598 | 33 |
| Iola historical | city | Iowa | United States | 41.33278 | -95.37972 | 1249 | 705 |
| Iolee historical | city | Florida | United States | 30.26667 | -85.13333 | 42 | 1652 |
| Ion | city | Iowa | United States | 43.11278 | -91.26194 | 859 | 605 |
| Iona | city | Idaho | United States | 43.52639 | -111.93222 | 4780 | 15569 |
| Iona | city | South Dakota | United States | 43.54306 | -99.42444 | 1850 | 98 |
| Iona | city | Texas | United States | 32.68111 | -97.55389 | 961 | 4845 |
| Iona | city | Oklahoma | United States | 34.61694 | -97.02944 | 1059 | 926 |
| Iona | city | Minnesota | United States | 43.91556 | -95.78389 | 1650 | 728 |
| Iona | city | Indiana | United States | 38.54861 | -87.47167 | 429 | 1679 |
| Iona | city | Florida | United States | 26.52 | -81.96417 | 3 | 39621 |
| Iona | city | Pennsylvania | United States | 40.32111 | -76.37139 | 515 | 17810 |
| Iona | city | New Jersey | United States | 39.60139 | -75.0675 | 95 | 17176 |
| Ione | city | California | United States | 38.35278 | -120.93167 | 377 | 2890 |
| Ione | city | Oregon | United States | 45.50139 | -119.82361 | 1279 | 89 |
| Ione | city | Nevada | United States | 38.94833 | -117.58667 | 7011 | 19 |
| Ione | city | Washington | United States | 48.74111 | -117.41611 | 1998 | 126 |
| Ione | city | Arkansas | United States | 35.06361 | -94.04722 | 597 | 630 |
| Ione | city | Georgia | United States | 31.01222 | -83.73389 | 278 | 1530 |
| Ionia | city | Kansas | United States | 39.66389 | -98.34722 | 1568 | 257 |
| Ionia | city | Arkansas | United States | 36.3325 | -94.51444 | 1249 | 3488 |
| Ionia | city | Missouri | United States | 38.50417 | -93.32389 | 977 | 1022 |
| Ionia | city | Iowa | United States | 43.03417 | -92.45583 | 1145 | 813 |
| Ionia | city | Michigan | United States | 42.98722 | -85.07111 | 639 | 14704 |
| Ionia | city | New York | United States | 42.93139 | -77.49222 | 902 | 6126 |
| Ionia | city | New York | United States | 43.09667 | -76.38167 | 462 | 6905 |
| Ionia historical | city | Kansas | United States | 42.66833 | -96.78056 | 1128 | 700 |
| Iosepa | city | Utah | United States | 40.53722 | -112.74361 | 4435 | 28 |
| Iota | city | Louisiana | United States | 30.33111 | -92.49556 | 26 | 2019 |
| Iotla | city | North Carolina | United States | 35.23611 | -83.39528 | 2030 | 5842 |
| Iotla historical | city | North Carolina | United States | 35.23444 | -83.39944 | 2001 | 5842 |
| Iowa | city | Louisiana | United States | 30.23667 | -93.01361 | 22 | 4109 |
| Iowa | city | Pennsylvania | United States | 41.12389 | -79.00778 | 1295 | 3146 |
| Iowa Center | city | Iowa | United States | 41.92861 | -93.405 | 902 | 1947 |
| Iowa City | city | California | United States | 39.29167 | -121.47639 | 196 | 1476 |
| Iowa City | city | Iowa | United States | 41.66111 | -91.53 | 662 | 61106 |
| Iowa City | city | Florida | United States | 28.69111 | -81.15139 | 22 | 12835 |
| Iowa Colony | city | Texas | United States | 29.48222 | -95.41528 | 52 | 8601 |
| Iowa Falls | city | Iowa | United States | 42.5225 | -93.25111 | 1112 | 4545 |
| Iowa Falls Junction | city | Iowa | United States | 42.51528 | -93.26333 | 1099 | 4545 |
| Iowa Hill | city | California | United States | 39.10861 | -120.85833 | 2598 | 622 |
| Iowa Junction | city | Illinois | United States | 40.68722 | -91.06 | 567 | 875 |
| Iowa Junction historical | city | Iowa | United States | 41.4925 | -91.535 | 597 | 1849 |
| Iowa Park | city | Texas | United States | 33.95139 | -98.66833 | 1017 | 8327 |
| Iowa Point | city | Kansas | United States | 39.92833 | -95.23833 | 994 | 590 |
|
|