| Boulogne-sur-Mer to Cottage Grove (Oregon) | 5,112.08 mi (8,227.09 km) |
| Boulogne-sur-Mer to Cottage Lake (Washington) | 4,858.14 mi (7,818.42 km) |
| Boulogne-sur-Mer to Cottonwood (Arizona) | 5,289.60 mi (8,512.79 km) |
| Boulogne-sur-Mer to Cottonwood Heights (Utah) | 4,958.72 mi (7,980.30 km) |
| Boulogne-sur-Mer to Council Bluffs (Iowa) | 4,377.54 mi (7,044.97 km) |
| Boulogne-sur-Mer to Country Club (Florida) | 4,508.60 mi (7,255.89 km) |
| Boulogne-sur-Mer to Country Club Hills (Illinois) | 4,057.92 mi (6,530.59 km) |
| Boulogne-sur-Mer to Country Walk (Florida) | 4,529.37 mi (7,289.31 km) |
| Boulogne-sur-Mer to Covina (California) | 5,518.90 mi (8,881.81 km) |
| Boulogne-sur-Mer to Covington (Georgia) | 4,280.62 mi (6,888.99 km) |
| Boulogne-sur-Mer to Covington (Kentucky) | 4,050.28 mi (6,518.30 km) |
| Boulogne-sur-Mer to Covington (Louisiana) | 4,691.37 mi (7,550.02 km) |
| Boulogne-sur-Mer to Covington (Washington) | 4,880.67 mi (7,854.67 km) |
| Boulogne-sur-Mer to Cranston (Rhode Island) | 3,402.15 mi (5,475.23 km) |
| Boulogne-sur-Mer to Crawfordsville (Indiana) | 4,096.84 mi (6,593.23 km) |
