| Killarney to Cookeville (Tennessee) | 3,743.28 mi (6,024.22 km) |
| Killarney to Coolidge (Arizona) | 4,923.31 mi (7,923.30 km) |
| Killarney to Coon Rapids (Minnesota) | 3,640.39 mi (5,858.65 km) |
| Killarney to Cooper City (Florida) | 4,015.66 mi (6,462.59 km) |
| Killarney to Coos Bay (Oregon) | 4,782.85 mi (7,697.25 km) |
| Killarney to Copiague (New York) | 3,040.67 mi (4,893.49 km) |
| Killarney to Coppell (Texas) | 4,362.77 mi (7,021.20 km) |
| Killarney to Copperas Cove (Texas) | 4,492.80 mi (7,230.46 km) |
| Killarney to Coral Gables (Florida) | 4,032.33 mi (6,489.42 km) |
| Killarney to Coral Springs (Florida) | 4,003.23 mi (6,442.58 km) |
| Killarney to Coral Terrace (Florida) | 4,031.59 mi (6,488.22 km) |
| Killarney to Coralville (Iowa) | 3,730.97 mi (6,004.41 km) |
| Killarney to Coram (New York) | 3,015.78 mi (4,853.43 km) |
| Killarney to Corcoran (California) | 5,036.66 mi (8,105.72 km) |
| Killarney to Cordele (Georgia) | 3,870.61 mi (6,229.15 km) |
