ZIP Code 51101 Map
Census ZIP Code Tabulation Area 51101 in Sioux City, IA (Woodbury County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 51101 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
1,031
Households
640
Median household income
$15,300
Median age
40.8 years
Median gross rent
$708/mo
Owner-occupied homes
3.4%
Bachelor's degree or higher
10.9%
Below poverty level
48.1%
Land area
1.2 sq mi
Population density
857 / sq mi