| Southborough to North Augusta (South Carolina) | 4,141.38 mi (6,664.90 km) |
| Southborough to North Aurora (Illinois) | 4,004.16 mi (6,444.08 km) |
| Southborough to North Babylon (New York) | 3,456.14 mi (5,562.13 km) |
| Southborough to North Bay Shore (New York) | 3,452.32 mi (5,555.97 km) |
| Southborough to North Bellmore (New York) | 3,466.70 mi (5,579.12 km) |
| Southborough to North Bellport (New York) | 3,438.19 mi (5,533.23 km) |
| Southborough to North Bend (Oregon) | 5,106.59 mi (8,218.25 km) |
| Southborough to North Bethesda (Maryland) | 3,685.84 mi (5,931.79 km) |
| Southborough to North Branch (Minnesota) | 4,002.58 mi (6,441.53 km) |
| Southborough to North Canton (Ohio) | 3,776.40 mi (6,077.53 km) |
| Southborough to North Charleston (South Carolina) | 4,092.69 mi (6,586.55 km) |
| Southborough to North Chicago (Illinois) | 3,962.26 mi (6,376.65 km) |
| Southborough to North Decatur (Georgia) | 4,223.61 mi (6,797.25 km) |
| Southborough to North Druid Hills (Georgia) | 4,224.57 mi (6,798.79 km) |
| Southborough to North Fair Oaks (California) | 5,394.16 mi (8,681.06 km) |
