| South Plainfield to Secaucus (New Jersey) | 23.19 mi (37.33 km) |
| South Plainfield to Security-Widefield (Colorado) | 1,608.57 mi (2,588.75 km) |
| South Plainfield to Sedalia (Missouri) | 1,007.61 mi (1,621.59 km) |
| South Plainfield to Sedro-Woolley (Washington) | 2,376.72 mi (3,824.96 km) |
| South Plainfield to Seguin (Texas) | 1,525.67 mi (2,455.32 km) |
| South Plainfield to Selden (New York) | 74.54 mi (119.96 km) |
| South Plainfield to Selma (Alabama) | 897.81 mi (1,444.89 km) |
| South Plainfield to Selma (California) | 2,430.40 mi (3,911.35 km) |
| South Plainfield to Selma (Texas) | 1,542.56 mi (2,482.51 km) |
| South Plainfield to Seminole (Florida) | 1,000.03 mi (1,609.40 km) |
| South Plainfield to Seven Hills (Ohio) | 382.57 mi (615.69 km) |
| South Plainfield to Seven Oaks (South Carolina) | 582.79 mi (937.91 km) |
| South Plainfield to Severn (Maryland) | 156.58 mi (251.99 km) |
| South Plainfield to Severna Park (Maryland) | 153.69 mi (247.34 km) |
| South Plainfield to Sevierville (Tennessee) | 592.51 mi (953.55 km) |
