Sioux City, IA

ZIP code 51105 is located in Sioux City, Iowa and covers a residential area in the northern part of the city. The most important landmark in this area is the Sioux City International Airport which serves as a major transportation hub for the region. Other notable landmarks include the Chris Larsen Park, home to the Sergeant Floyd Monument and the Sioux City Public Museum, offering a glimpse into the city's history.