| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Igerna | city | California | United States | 41.40167 | -122.37833 | 3799 | 1286 |
| Igerna | city | New York | United States | 43.72417 | -73.92139 | 1217 | 1077 |
| Igiak | city | Alaska | United States | 61.6175 | -165.93361 | 49 | 5 |
| Igiugig | city | Alaska | United States | 59.32778 | -155.89472 | 104 | 0 |
| Iglehart | city | Texas | United States | 30.25861 | -97.70667 | 456 | 144511 |
| Iglehart | city | Maryland | United States | 39.01167 | -76.56778 | 98 | 43594 |
| Iglesia | city | Puerto Rico | United States | 18.43139 | -67.15417 | 301 | 58726 |
| Iglesia Virgen de la Providencia | city | Puerto Rico | United States | 18.25028 | -66.19444 | 1797 | 116701 |
| Igloo | city | Alaska | United States | 65.14778 | -165.06333 | 78 | 5 |
| Igloo | city | South Dakota | United States | 43.2025 | -103.85639 | 3772 | 61 |
| Ignacio | city | California | United States | 38.07028 | -122.5375 | 52 | 40592 |
| Ignacio | city | Colorado | United States | 37.115 | -107.6325 | 6551 | 1125 |
| Igo | city | California | United States | 40.50556 | -122.54056 | 997 | 3331 |
| Igo historical | city | Oregon | United States | 45.25222 | -120.27917 | 3277 | 61 |
| Igo historical | city | Georgia | United States | 34.48278 | -84.70667 | 777 | 2499 |
| Igushik | city | Alaska | United States | 58.71028 | -158.89 | 32 | 3 |
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