Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
85,797
People
Median age
34.9
Housing
Total households
32,926
Income
Median household income
$68,906
Housing
Total housing units
35,001
Employment
Employment rate
64.2%
Education
Bachelor’s degree or higher
22.9%
Healthcare
Insured population
91.6%
City details
Local time 03:49:30(CT)| Location | Sioux City, IA |
|---|---|
| Population (ZIP areas) | 89,446(sum of local ZIP code populations) |
| Total ZIP codes | 9total |
| ZIP codes (by type) | 8 Standard1 PO Box |
| County | Woodbury |
| Area code | |
| Timezone | Central Time (CT) |
| Coordinates | 42.529157533919076, -96.3731143217525 |
| Land area | 129.9 sq miles(336,337,659 m²) |
Map of Sioux City, Iowa with ZIP codes
ZIP Codes in Sioux City
Explore the ZIP codes that make up Sioux City. Analyze key demographics and population stats for the region using the comprehensive table below.
| ZIP | Type | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 51101 | Standard | $15,300 | 1,146 |
| 51102 | PO BOX | — | — |
| 51103 | Standard | $58,197 | 16,827 |
| 51104 | Standard | $75,362 | 23,080 |
| 51105 | Standard | $51,786 | 10,565 |
| 51106 | Standard | $78,434 | 28,655 |
| 51108 | Standard | $81,205 | 5,967 |
| 51109 | Standard | $79,034 | 3,109 |
| 51111 | Standard | — | 97 |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP type legend
- Standard: residential and business delivery areas
- PO BOX: primarily post office boxes; population may be unavailable
- Unique: high-volume organizations (universities, agencies, etc.)
Nearby cities
Other cities near Sioux City, IA.
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS