About 51102 - Sioux City, Iowa
Located in Iowa, the United States is home to the densely populated community of Sioux City, served by ZIP code 51102. It sits within Sioux City County County.
Census data puts the population of this ZIP code at 41,604 residents. That's noticeably above the average for a Iowa ZIP code, which sits near 22,608 people.
Median household income is about $81,000 (above the Iowa average).
Nearby communities in Iowa include Montour, Cresco, Davenport.