| Howard to Cullman (Alabama) | 721.15 mi (1,160.59 km) |
| Howard to Culpeper (Virginia) | 670.12 mi (1,078.45 km) |
| Howard to Culver City (California) | 1,763.99 mi (2,838.87 km) |
| Howard to Cumberland (Maryland) | 586.26 mi (943.50 km) |
| Howard to Cupertino (California) | 1,826.91 mi (2,940.13 km) |
| Howard to Cutler Bay (Florida) | 1,382.09 mi (2,224.25 km) |
| Howard to Cutlerville (Michigan) | 169.96 mi (273.52 km) |
| Howard to Cuyahoga Falls (Ohio) | 407.41 mi (655.66 km) |
| Howard to Cypress (California) | 1,754.15 mi (2,823.02 km) |
| Howard to Cypress Gardens (Florida) | 1,197.99 mi (1,927.97 km) |
| Howard to Cypress Lake (Florida) | 1,292.55 mi (2,080.16 km) |
| Howard to D'Iberville (Mississippi) | 975.17 mi (1,569.38 km) |
| Howard to Dakota Ridge (Colorado) | 936.07 mi (1,506.46 km) |
| Howard to Dale City (Virginia) | 688.76 mi (1,108.46 km) |
| Howard to Dallas (Georgia) | 756.30 mi (1,217.14 km) |
