| San Juan to Cullman (Alabama) | 1,680.41 mi (2,704.35 km) |
| San Juan to Culpeper (Virginia) | 1,561.70 mi (2,513.31 km) |
| San Juan to Culver City (California) | 3,379.77 mi (5,439.22 km) |
| San Juan to Cumberland (Maryland) | 1,652.62 mi (2,659.63 km) |
| San Juan to Cupertino (California) | 3,603.76 mi (5,799.70 km) |
| San Juan to Cutler Bay (Florida) | 1,039.29 mi (1,672.57 km) |
| San Juan to Cutlerville (Michigan) | 2,040.98 mi (3,284.63 km) |
| San Juan to Cuyahoga Falls (Ohio) | 1,819.27 mi (2,927.83 km) |
| San Juan to Cypress (California) | 3,358.22 mi (5,404.53 km) |
| San Juan to Cypress Gardens (Florida) | 1,191.83 mi (1,918.07 km) |
| San Juan to Cypress Lake (Florida) | 1,155.64 mi (1,859.82 km) |
| San Juan to D'Iberville (Mississippi) | 1,656.16 mi (2,665.33 km) |
| San Juan to Dakota Ridge (Colorado) | 2,747.25 mi (4,421.27 km) |
| San Juan to Dale City (Virginia) | 1,554.69 mi (2,502.03 km) |
| San Juan to Dallas (Georgia) | 1,577.73 mi (2,539.11 km) |
