| Park Forest to Isabela (Puerto Rico) | 2,001.30 mi (3,220.79 km) |
| Park Forest to Iselin (New Jersey) | 699.02 mi (1,124.97 km) |
| Park Forest to Isla Vista (California) | 1,808.23 mi (2,910.06 km) |
| Park Forest to Issaquah (Washington) | 1,728.68 mi (2,782.04 km) |
| Park Forest to Ithaca (New York) | 577.97 mi (930.16 km) |
| Park Forest to Ives Estates (Florida) | 1,154.50 mi (1,857.98 km) |
| Park Forest to Jackson (Michigan) | 176.92 mi (284.72 km) |
| Park Forest to Jackson (Mississippi) | 648.42 mi (1,043.53 km) |
| Park Forest to Jackson (Missouri) | 302.22 mi (486.37 km) |
| Park Forest to Jackson (Tennessee) | 407.41 mi (655.66 km) |
| Park Forest to Jackson (Wyoming) | 1,180.72 mi (1,900.19 km) |
| Park Forest to Jacksonville (Alabama) | 540.54 mi (869.91 km) |
| Park Forest to Jacksonville (Arkansas) | 515.81 mi (830.12 km) |
| Park Forest to Jacksonville (Florida) | 840.05 mi (1,351.93 km) |
| Park Forest to Jacksonville (Illinois) | 180.22 mi (290.03 km) |
