| Rockford to Salisbury (New York) | 807.89 mi (1,300.18 km) |
| Rockford to Salisbury (North Carolina) | 647.20 mi (1,041.56 km) |
| Rockford to Salmon Creek (Washington) | 1,674.73 mi (2,695.21 km) |
| Rockford to Salt Lake City (Utah) | 1,183.83 mi (1,905.19 km) |
| Rockford to Sammamish (Washington) | 1,641.54 mi (2,641.80 km) |
| Rockford to San Angelo (Texas) | 975.33 mi (1,569.65 km) |
| Rockford to San Anselmo (California) | 1,782.98 mi (2,869.42 km) |
| Rockford to San Antonio (Texas) | 1,029.12 mi (1,656.20 km) |
| Rockford to San Benito (Texas) | 1,215.94 mi (1,956.87 km) |
| Rockford to San Bernardino (California) | 1,623.11 mi (2,612.15 km) |
| Rockford to San Bruno (California) | 1,784.53 mi (2,871.93 km) |
| Rockford to San Buenaventura (California) | 1,716.41 mi (2,762.30 km) |
| Rockford to San Carlos (California) | 1,779.32 mi (2,863.54 km) |
| Rockford to San Carlos Park (Florida) | 1,165.01 mi (1,874.90 km) |
| Rockford to San Clemente (California) | 1,662.26 mi (2,675.15 km) |
