| Groningen to Castle Rock (Colorado) | 4,848.98 mi (7,803.68 km) |
| Groningen to Castro Valley (California) | 5,444.94 mi (8,762.78 km) |
| Groningen to Catalina Foothills (Arizona) | 5,442.62 mi (8,759.05 km) |
| Groningen to Cataño (Puerto Rico) | 4,493.21 mi (7,231.13 km) |
| Groningen to Cathedral City (California) | 5,522.65 mi (8,887.84 km) |
| Groningen to Catonsville (Maryland) | 3,861.01 mi (6,213.70 km) |
| Groningen to Cave Spring (Virginia) | 4,085.89 mi (6,575.61 km) |
| Groningen to Cayce (South Carolina) | 4,290.60 mi (6,905.05 km) |
| Groningen to Cayey (Puerto Rico) | 4,511.30 mi (7,260.24 km) |
| Groningen to Cedar City (Utah) | 5,197.34 mi (8,364.31 km) |
| Groningen to Cedar Falls (Iowa) | 4,272.03 mi (6,875.17 km) |
| Groningen to Cedar Hill (Texas) | 4,956.99 mi (7,977.50 km) |
| Groningen to Cedar Lake (Indiana) | 4,155.01 mi (6,686.84 km) |
| Groningen to Cedar Mill (Oregon) | 4,989.13 mi (8,029.23 km) |
| Groningen to Cedar Park (Texas) | 5,101.35 mi (8,209.83 km) |
