| Holtsville to Carrollwood (Florida) | 1,031.86 mi (1,660.62 km) |
| Holtsville to Carson (California) | 2,502.07 mi (4,026.69 km) |
| Holtsville to Carson City (Nevada) | 2,445.71 mi (3,935.99 km) |
| Holtsville to Carteret (New Jersey) | 63.97 mi (102.94 km) |
| Holtsville to Cartersville (Georgia) | 790.29 mi (1,271.85 km) |
| Holtsville to Carthage (Missouri) | 1,167.38 mi (1,878.71 km) |
| Holtsville to Cary (Illinois) | 791.51 mi (1,273.81 km) |
| Holtsville to Cary (North Carolina) | 467.60 mi (752.53 km) |
| Holtsville to Casa de Oro-Mount Helix (California) | 2,466.44 mi (3,969.36 km) |
| Holtsville to Casa Grande (Arizona) | 2,189.93 mi (3,524.35 km) |
| Holtsville to Casas Adobes (Arizona) | 2,167.88 mi (3,488.87 km) |
| Holtsville to Cascades (Virginia) | 260.40 mi (419.07 km) |
| Holtsville to Casper (Wyoming) | 1,707.81 mi (2,748.45 km) |
| Holtsville to Casselberry (Florida) | 960.96 mi (1,546.51 km) |
| Holtsville to Castaic (California) | 2,503.39 mi (4,028.81 km) |
