| Groningen to Cicero (Illinois) | 4,142.65 mi (6,666.95 km) |
| Groningen to Cimarron Hills (Colorado) | 4,872.85 mi (7,842.10 km) |
| Groningen to Cincinnati (Ohio) | 4,159.91 mi (6,694.73 km) |
| Groningen to Cinco Ranch (Texas) | 5,068.95 mi (8,157.69 km) |
| Groningen to Circleville (Ohio) | 4,078.48 mi (6,563.69 km) |
| Groningen to Citrus (California) | 5,547.23 mi (8,927.40 km) |
| Groningen to Citrus Heights (California) | 5,364.98 mi (8,634.11 km) |
| Groningen to Citrus Park (Florida) | 4,654.17 mi (7,490.16 km) |
| Groningen to Claiborne (Louisiana) | 4,786.57 mi (7,703.24 km) |
| Groningen to Claremont (California) | 5,541.65 mi (8,918.43 km) |
| Groningen to Claremont (New Hampshire) | 3,500.67 mi (5,633.79 km) |
| Groningen to Claremore (Oklahoma) | 4,707.14 mi (7,575.42 km) |
| Groningen to Clarksburg (Maryland) | 3,883.04 mi (6,249.14 km) |
| Groningen to Clarksburg (West Virginia) | 3,996.41 mi (6,431.60 km) |
| Groningen to Clarksdale (Mississippi) | 4,638.53 mi (7,465.00 km) |
