| Howard to Cibolo (Texas) | 1,175.24 mi (1,891.36 km) |
| Howard to Cicero (Illinois) | 189.08 mi (304.30 km) |
| Howard to Cimarron Hills (Colorado) | 940.71 mi (1,513.93 km) |
| Howard to Cincinnati (Ohio) | 417.95 mi (672.63 km) |
| Howard to Cinco Ranch (Texas) | 1,107.03 mi (1,781.59 km) |
| Howard to Circleville (Ohio) | 432.95 mi (696.77 km) |
| Howard to Citrus (California) | 1,735.55 mi (2,793.10 km) |
| Howard to Citrus Heights (California) | 1,748.72 mi (2,814.29 km) |
| Howard to Citrus Park (Florida) | 1,179.95 mi (1,898.95 km) |
| Howard to Claiborne (Louisiana) | 860.13 mi (1,384.25 km) |
| Howard to Claremont (California) | 1,726.89 mi (2,779.16 km) |
| Howard to Claremont (New Hampshire) | 786.50 mi (1,265.76 km) |
| Howard to Claremore (Oklahoma) | 693.29 mi (1,115.74 km) |
| Howard to Clarksburg (Maryland) | 667.30 mi (1,073.91 km) |
| Howard to Clarksburg (West Virginia) | 540.66 mi (870.11 km) |
