| Echelon to Cold Springs (Nevada) | 2,362.87 mi (3,802.67 km) |
| Echelon to Coldwater (Michigan) | 541.81 mi (871.96 km) |
| Echelon to Colesville (Maryland) | 119.63 mi (192.52 km) |
| Echelon to College (Alaska) | 3,277.70 mi (5,274.95 km) |
| Echelon to College Park (Georgia) | 676.82 mi (1,089.24 km) |
| Echelon to College Park (Maryland) | 119.02 mi (191.54 km) |
| Echelon to College Station (Texas) | 1,357.13 mi (2,184.08 km) |
| Echelon to Collegedale (Tennessee) | 642.72 mi (1,034.35 km) |
| Echelon to Colleyville (Texas) | 1,318.48 mi (2,121.89 km) |
| Echelon to Collierville (Tennessee) | 870.71 mi (1,401.27 km) |
| Echelon to Collinsville (Illinois) | 806.11 mi (1,297.31 km) |
| Echelon to Colonia (New Jersey) | 62.74 mi (100.96 km) |
| Echelon to Colonial Heights (Virginia) | 220.63 mi (355.07 km) |
| Echelon to Colonial Park (Pennsylvania) | 100.69 mi (162.05 km) |
| Echelon to Colorado Springs (Colorado) | 1,584.22 mi (2,549.55 km) |
