| Johnston to Cullman (Alabama) | 639.96 mi (1,029.91 km) |
| Johnston to Culpeper (Virginia) | 859.12 mi (1,382.62 km) |
| Johnston to Culver City (California) | 1,440.75 mi (2,318.67 km) |
| Johnston to Cumberland (Maryland) | 795.73 mi (1,280.60 km) |
| Johnston to Cupertino (California) | 1,532.61 mi (2,466.50 km) |
| Johnston to Cutler Bay (Florida) | 1,350.12 mi (2,172.81 km) |
| Johnston to Cutlerville (Michigan) | 419.02 mi (674.35 km) |
| Johnston to Cuyahoga Falls (Ohio) | 632.69 mi (1,018.21 km) |
| Johnston to Cypress (California) | 1,429.18 mi (2,300.04 km) |
| Johnston to Cypress Gardens (Florida) | 1,163.73 mi (1,872.83 km) |
| Johnston to Cypress Lake (Florida) | 1,243.60 mi (2,001.38 km) |
| Johnston to D'Iberville (Mississippi) | 820.29 mi (1,320.13 km) |
| Johnston to Dakota Ridge (Colorado) | 614.51 mi (988.96 km) |
| Johnston to Dale City (Virginia) | 888.39 mi (1,429.72 km) |
| Johnston to Dallas (Georgia) | 722.88 mi (1,163.37 km) |
