| Middletown to Keene (New Hampshire) | 669.95 mi (1,078.18 km) |
| Middletown to Keizer (Oregon) | 1,993.60 mi (3,208.39 km) |
| Middletown to Keller (Texas) | 847.16 mi (1,363.37 km) |
| Middletown to Kelso (Washington) | 1,984.78 mi (3,194.20 km) |
| Middletown to Kemp Mill (Maryland) | 394.02 mi (634.12 km) |
| Middletown to Ken Caryl (Colorado) | 1,103.09 mi (1,775.26 km) |
| Middletown to Kendale Lakes (Florida) | 980.31 mi (1,577.65 km) |
| Middletown to Kendall (Florida) | 983.61 mi (1,582.96 km) |
| Middletown to Kendall Park (New Jersey) | 522.68 mi (841.18 km) |
| Middletown to Kendall West (Florida) | 980.00 mi (1,577.15 km) |
| Middletown to Kenmore (New York) | 372.28 mi (599.13 km) |
| Middletown to Kenmore (Washington) | 1,956.55 mi (3,148.76 km) |
| Middletown to Kenner (Louisiana) | 735.69 mi (1,183.99 km) |
| Middletown to Kennesaw (Georgia) | 378.70 mi (609.46 km) |
| Middletown to Kennett (Missouri) | 383.11 mi (616.55 km) |
