| Karlovo to Security-Widefield (Colorado) | 5,984.92 mi (9,631.80 km) |
| Karlovo to Sedalia (Missouri) | 5,607.26 mi (9,024.01 km) |
| Karlovo to Sedro-Woolley (Washington) | 5,827.48 mi (9,378.42 km) |
| Karlovo to Seguin (Texas) | 6,264.98 mi (10,082.51 km) |
| Karlovo to Selden (New York) | 4,729.57 mi (7,611.50 km) |
| Karlovo to Selma (Alabama) | 5,693.75 mi (9,163.21 km) |
| Karlovo to Selma (California) | 6,522.89 mi (10,497.57 km) |
| Karlovo to Selma (Texas) | 6,277.94 mi (10,103.36 km) |
| Karlovo to Seminole (Florida) | 5,742.88 mi (9,242.27 km) |
| Karlovo to Seven Hills (Ohio) | 5,048.49 mi (8,124.76 km) |
| Karlovo to Seven Oaks (South Carolina) | 5,373.57 mi (8,647.93 km) |
| Karlovo to Severn (Maryland) | 4,954.83 mi (7,974.04 km) |
| Karlovo to Severna Park (Maryland) | 4,951.85 mi (7,969.23 km) |
| Karlovo to Sevierville (Tennessee) | 5,383.89 mi (8,664.53 km) |
| Karlovo to Seymour (Indiana) | 5,325.50 mi (8,570.56 km) |
