| Council Bluffs to Smyrna (Delaware) | 1,073.21 mi (1,727.17 km) |
| Council Bluffs to Smyrna (Georgia) | 801.96 mi (1,290.62 km) |
| Council Bluffs to Smyrna (Tennessee) | 620.72 mi (998.95 km) |
| Council Bluffs to Snellville (Georgia) | 824.09 mi (1,326.25 km) |
| Council Bluffs to Snoqualmie (Washington) | 1,347.48 mi (2,168.56 km) |
| Council Bluffs to Snyder (Texas) | 651.49 mi (1,048.47 km) |
| Council Bluffs to Socastee (South Carolina) | 1,058.15 mi (1,702.93 km) |
| Council Bluffs to Socorro (Texas) | 878.74 mi (1,414.19 km) |
| Council Bluffs to Soddy-Daisy (Tennessee) | 710.75 mi (1,143.83 km) |
| Council Bluffs to Solana Beach (California) | 1,304.92 mi (2,100.06 km) |
| Council Bluffs to Soledad (California) | 1,405.74 mi (2,262.31 km) |
| Council Bluffs to Solon (Ohio) | 747.14 mi (1,202.41 km) |
| Council Bluffs to Somers Point (New Jersey) | 1,124.88 mi (1,810.32 km) |
| Council Bluffs to Somerset (Kentucky) | 666.39 mi (1,072.45 km) |
| Council Bluffs to Somerset (New Jersey) | 1,113.81 mi (1,792.51 km) |
