| Johnston to Candler-McAfee (Georgia) | 753.84 mi (1,213.18 km) |
| Johnston to Caño Martin Peña (Puerto Rico) | 2,287.22 mi (3,680.92 km) |
| Johnston to Cañon City (Colorado) | 647.38 mi (1,041.86 km) |
| Johnston to Canóvanas (Puerto Rico) | 2,296.75 mi (3,696.26 km) |
| Johnston to Canton (Georgia) | 718.54 mi (1,156.38 km) |
| Johnston to Canton (Illinois) | 206.87 mi (332.92 km) |
| Johnston to Canton (Mississippi) | 660.20 mi (1,062.48 km) |
| Johnston to Canton (Ohio) | 644.19 mi (1,036.72 km) |
| Johnston to Canyon (Texas) | 640.92 mi (1,031.46 km) |
| Johnston to Canyon Lake (California) | 1,394.91 mi (2,244.89 km) |
| Johnston to Canyon Lake (Texas) | 854.68 mi (1,375.48 km) |
| Johnston to Cape Coral (Florida) | 1,234.36 mi (1,986.51 km) |
| Johnston to Cape Girardeau (Missouri) | 375.21 mi (603.84 km) |
| Johnston to Carbondale (Illinois) | 363.77 mi (585.42 km) |
| Johnston to Carlisle (Pennsylvania) | 866.93 mi (1,395.19 km) |
