| Cave to Iselin (New Jersey) | 4,322.60 mi (6,956.55 km) |
| Cave to Isla Vista (California) | 6,380.34 mi (10,268.17 km) |
| Cave to Issaquah (Washington) | 5,677.09 mi (9,136.39 km) |
| Cave to Ithaca (New York) | 4,346.70 mi (6,995.34 km) |
| Cave to Ives Estates (Florida) | 5,195.71 mi (8,361.68 km) |
| Cave to Jackson (Michigan) | 4,684.78 mi (7,539.43 km) |
| Cave to Jackson (Mississippi) | 5,367.91 mi (8,638.82 km) |
| Cave to Jackson (Missouri) | 5,112.52 mi (8,227.80 km) |
| Cave to Jackson (Tennessee) | 5,156.13 mi (8,298.00 km) |
| Cave to Jackson (Wyoming) | 5,588.00 mi (8,993.02 km) |
| Cave to Jacksonville (Alabama) | 5,105.41 mi (8,216.36 km) |
| Cave to Jacksonville (Arkansas) | 5,330.55 mi (8,578.69 km) |
| Cave to Jacksonville (Florida) | 5,074.14 mi (8,166.04 km) |
| Cave to Jacksonville (Illinois) | 5,030.38 mi (8,095.61 km) |
| Cave to Jacksonville (North Carolina) | 4,690.93 mi (7,549.32 km) |
