| Howard to Clarksdale (Mississippi) | 728.98 mi (1,173.18 km) |
| Howard to Clarkston (Georgia) | 771.20 mi (1,241.12 km) |
| Howard to Clarksville (Indiana) | 448.15 mi (721.22 km) |
| Howard to Clarksville (Tennessee) | 554.22 mi (891.93 km) |
| Howard to Clawson (Michigan) | 284.52 mi (457.89 km) |
| Howard to Clay (Alabama) | 755.56 mi (1,215.96 km) |
| Howard to Clayton (California) | 1,802.22 mi (2,900.39 km) |
| Howard to Clayton (Missouri) | 425.40 mi (684.61 km) |
| Howard to Clayton (North Carolina) | 798.01 mi (1,284.28 km) |
| Howard to Clayton (Ohio) | 377.53 mi (607.57 km) |
| Howard to Clearfield (Utah) | 1,231.24 mi (1,981.49 km) |
| Howard to Clearlake (California) | 1,807.52 mi (2,908.92 km) |
| Howard to Clearwater (Florida) | 1,183.48 mi (1,904.63 km) |
| Howard to Cleburne (Texas) | 981.56 mi (1,579.67 km) |
| Howard to Clemmons (North Carolina) | 715.46 mi (1,151.42 km) |
