| Highland to Somersworth (New Hampshire) | 2,540.53 mi (4,088.59 km) |
| Highland to Somerton (Arizona) | 176.46 mi (283.98 km) |
| Highland to Somerville (Massachusetts) | 2,531.76 mi (4,074.47 km) |
| Highland to Somerville (New Jersey) | 2,356.46 mi (3,792.35 km) |
| Highland to Sonoma (California) | 412.79 mi (664.32 km) |
| Highland to Soquel (California) | 334.69 mi (538.63 km) |
| Highland to South Bend (Indiana) | 1,753.01 mi (2,821.20 km) |
| Highland to South Bradenton (Florida) | 2,093.00 mi (3,368.36 km) |
| Highland to South Burlington (Vermont) | 2,424.32 mi (3,901.57 km) |
| Highland to South Charleston (West Virginia) | 1,985.02 mi (3,194.59 km) |
| Highland to South Daytona (Florida) | 2,143.06 mi (3,448.92 km) |
| Highland to South El Monte (California) | 50.74 mi (81.65 km) |
| Highland to South Elgin (Illinois) | 1,652.11 mi (2,658.81 km) |
| Highland to South Euclid (Ohio) | 1,996.22 mi (3,212.61 km) |
| Highland to South Farmingdale (New York) | 2,416.70 mi (3,889.30 km) |
