| Johnston to Central Point (Oregon) | 1,491.25 mi (2,399.94 km) |
| Johnston to Centralia (Illinois) | 327.06 mi (526.35 km) |
| Johnston to Centralia (Washington) | 1,480.37 mi (2,382.43 km) |
| Johnston to Centreville (Virginia) | 879.43 mi (1,415.31 km) |
| Johnston to Ceres (California) | 1,470.13 mi (2,365.94 km) |
| Johnston to Cerritos (California) | 1,428.96 mi (2,299.68 km) |
| Johnston to Chalco (Nebraska) | 129.79 mi (208.88 km) |
| Johnston to Chalmette (Louisiana) | 838.27 mi (1,349.06 km) |
| Johnston to Chambersburg (Pennsylvania) | 847.73 mi (1,364.29 km) |
| Johnston to Chamblee (Georgia) | 744.51 mi (1,198.18 km) |
| Johnston to Champaign (Illinois) | 304.67 mi (490.31 km) |
| Johnston to Champlin (Minnesota) | 240.97 mi (387.80 km) |
| Johnston to Chandler (Arizona) | 1,147.75 mi (1,847.12 km) |
| Johnston to Chanhassen (Minnesota) | 218.73 mi (352.02 km) |
| Johnston to Channahon (Illinois) | 283.05 mi (455.52 km) |
