| Gretz-Armainvilliers to Castle Rock (Colorado) | 4,916.88 mi (7,912.96 km) |
| Gretz-Armainvilliers to Castro Valley (California) | 5,573.96 mi (8,970.42 km) |
| Gretz-Armainvilliers to Catalina Foothills (Arizona) | 5,508.22 mi (8,864.63 km) |
| Gretz-Armainvilliers to Cataño (Puerto Rico) | 4,311.89 mi (6,939.31 km) |
| Gretz-Armainvilliers to Cathedral City (California) | 5,616.89 mi (9,039.50 km) |
| Gretz-Armainvilliers to Catonsville (Maryland) | 3,822.08 mi (6,151.04 km) |
| Gretz-Armainvilliers to Cave Spring (Virginia) | 4,048.40 mi (6,515.27 km) |
| Gretz-Armainvilliers to Cayce (South Carolina) | 4,240.59 mi (6,824.57 km) |
| Gretz-Armainvilliers to Cayey (Puerto Rico) | 4,328.81 mi (6,966.54 km) |
| Gretz-Armainvilliers to Cedar City (Utah) | 5,290.93 mi (8,514.94 km) |
| Gretz-Armainvilliers to Cedar Falls (Iowa) | 4,307.80 mi (6,932.74 km) |
| Gretz-Armainvilliers to Cedar Hill (Texas) | 4,965.46 mi (7,991.13 km) |
| Gretz-Armainvilliers to Cedar Lake (Indiana) | 4,166.87 mi (6,705.94 km) |
| Gretz-Armainvilliers to Cedar Mill (Oregon) | 5,144.20 mi (8,278.79 km) |
| Gretz-Armainvilliers to Cedar Park (Texas) | 5,104.85 mi (8,215.47 km) |
