| Signal Hill to Los Alamitos (California) | 6.27 mi (10.08 km) |
| Signal Hill to Los Alamos (New Mexico) | 688.56 mi (1,108.13 km) |
| Signal Hill to Los Altos (California) | 330.70 mi (532.21 km) |
| Signal Hill to Los Angeles (California) | 25.48 mi (41.00 km) |
| Signal Hill to Los Banos (California) | 270.84 mi (435.87 km) |
| Signal Hill to Los Gatos (California) | 318.47 mi (512.53 km) |
| Signal Hill to Los Lunas (New Mexico) | 653.30 mi (1,051.39 km) |
| Signal Hill to Los Osos (California) | 183.39 mi (295.13 km) |
| Signal Hill to Loudoun Valley Estates (Virginia) | 2,270.71 mi (3,654.35 km) |
| Signal Hill to Louisville (Colorado) | 835.16 mi (1,344.05 km) |
| Signal Hill to Louisville (Kentucky) | 1,833.34 mi (2,950.48 km) |
| Signal Hill to Lovejoy (Georgia) | 1,938.82 mi (3,120.22 km) |
| Signal Hill to Loveland (Colorado) | 853.16 mi (1,373.03 km) |
| Signal Hill to Loveland (Ohio) | 1,907.60 mi (3,069.98 km) |
| Signal Hill to Loves Park (Illinois) | 1,682.59 mi (2,707.87 km) |
