| Sioux City to Zambrow | 4,901.21 mi (7,887.73 km) |
| Sioux City to Zamosc | 5,045.41 mi (8,119.80 km) |
| Sioux City to Zary | 4,753.07 mi (7,649.33 km) |
| Sioux City to Zawiercie | 4,941.07 mi (7,951.88 km) |
| Sioux City to Zdunska Wola | 4,873.29 mi (7,842.81 km) |
| Sioux City to Zdzieszowice | 4,904.95 mi (7,893.75 km) |
| Sioux City to Zgierz | 4,874.63 mi (7,844.97 km) |
| Sioux City to Zgorzelec | 4,771.73 mi (7,679.37 km) |
| Sioux City to Ziebice | 4,862.00 mi (7,824.63 km) |
| Sioux City to Zielona Gora | 4,750.53 mi (7,645.24 km) |
| Sioux City to Zielonka | 4,903.94 mi (7,892.13 km) |
| Sioux City to Zlocieniec | 4,691.60 mi (7,550.41 km) |
| Sioux City to Zlotoryja | 4,801.33 mi (7,727.00 km) |
| Sioux City to Zlotow | 4,730.42 mi (7,612.87 km) |
| Sioux City to Znin | 4,774.54 mi (7,683.87 km) |
