| Grays to Indianola (Iowa) | 4,212.78 mi (6,779.82 km) |
| Grays to Indio (California) | 5,409.86 mi (8,706.32 km) |
| Grays to Inglewood (California) | 5,465.31 mi (8,795.57 km) |
| Grays to Inkster (Michigan) | 3,781.35 mi (6,085.50 km) |
| Grays to Inver Grove Heights (Minnesota) | 4,028.56 mi (6,483.35 km) |
| Grays to Inwood (New York) | 3,474.08 mi (5,590.99 km) |
| Grays to Iona (Florida) | 4,484.84 mi (7,217.65 km) |
| Grays to Ionia (Michigan) | 3,818.11 mi (6,144.65 km) |
| Grays to Iowa City (Iowa) | 4,123.27 mi (6,635.76 km) |
| Grays to Irmo (South Carolina) | 4,078.37 mi (6,563.51 km) |
| Grays to Irondale (Alabama) | 4,328.12 mi (6,965.43 km) |
| Grays to Ironton (Ohio) | 3,928.71 mi (6,322.65 km) |
| Grays to Irvine (California) | 5,463.05 mi (8,791.93 km) |
| Grays to Irving (Texas) | 4,769.07 mi (7,675.07 km) |
| Grays to Isabela (Puerto Rico) | 4,255.91 mi (6,849.23 km) |
