| Alpena to Camas (Washington) | 1,875.14 mi (3,017.75 km) |
| Alpena to Cambridge (Maryland) | 588.38 mi (946.91 km) |
| Alpena to Cambridge (Massachusetts) | 642.12 mi (1,033.39 km) |
| Alpena to Camden (Arkansas) | 939.20 mi (1,511.50 km) |
| Alpena to Camden (New Jersey) | 552.82 mi (889.68 km) |
| Alpena to Cameron Park (California) | 1,962.98 mi (3,159.12 km) |
| Alpena to Camp Pendleton South (California) | 1,975.88 mi (3,179.87 km) |
| Alpena to Camp Springs (Maryland) | 547.23 mi (880.69 km) |
| Alpena to Camp Verde (Arizona) | 1,661.82 mi (2,674.44 km) |
| Alpena to Campbell (California) | 2,052.92 mi (3,303.86 km) |
| Alpena to Campbellsville (Kentucky) | 543.17 mi (874.15 km) |
| Alpena to Campton Hills (Illinois) | 329.70 mi (530.60 km) |
| Alpena to Canby (Oregon) | 1,892.61 mi (3,045.87 km) |
| Alpena to Candelaria (Puerto Rico) | 2,092.21 mi (3,367.09 km) |
| Alpena to Candler-McAfee (Georgia) | 785.27 mi (1,263.77 km) |
