ZIP Code 51103 Map
Census ZIP Code Tabulation Area 51103 in Sioux City, IA (Woodbury County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 51103 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
16,895
Households
6,402
Median household income
$58,197
Median age
35.5 years
Median home value
$142,900
Median gross rent
$906/mo
Owner-occupied homes
65.6%
Bachelor's degree or higher
18%
Below poverty level
21%
Land area
12.1 sq mi
Population density
1,400 / sq mi