Live Chat I-29 Community Nearby Traffic Sioux City Post Office (Amenity postoffice) 2024-04-27 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Sioux City Post Office (Amenity Postoffice) South Sioux City, NE 3.50 Dakota City, NE 8.49 Big Sioux, SD 8.61 Interstate highway exits close to Sioux City Post Office (Amenity Postoffice) Exit 147a, i29 0.73 Exit 147b, i29 0.85 Exit 148, i29 1.47 Interstate highways close to Sioux City Post Office (Amenity Postoffice) i29 map 0.73 i229sd map 115.58 i680ne map 117.77 State roads close to Sioux City Post Office (Amenity Postoffice) US 77 NE IA map 1.42 US 75 NE map 4.98 US 75 IA map 5.47