ZIP code
51103
Sioux City, IA
51103 covers Sioux City in Woodbury County, with 17,145 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 51103. Methodology
ZIP code map of 51103
About ZIP code 51103
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 51103. Not ACS. Methodology
People in 51103
Race
- White9,670
- Black or African American936
- American Indian or Alaska Native832
- Asian761
- Native Hawaiian and Pacific Islander200
- Other race2,181
- Two or more races2,247
Hispanic or Latino (any race): 5,069
Age
- Under 102,456
- 10 to 192,707
- 20 to 292,181
- 30 to 392,160
- 40 to 491,945
- 50 to 592,031
- 60 to 691,848
- 70 to 79950
- 80 and older549
Income and housing in 51103
Education
- High school graduate77.1%
- Bachelor's degree17.1%
- Graduate degree4.1%
Places covering 51103
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Sioux City100.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Woodbury County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Population history for 51103
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 14,407 | |
| 2006 | 14,288 | |
| 2007 | 15,930 | |
| 2008 | 15,077 | |
| 2009 | 15,251 | |
| 2010 | 15,360 | |
| 2011 | 17,497 | 15,312 |
| 2012 | 17,831 | 15,180 |
| 2013 | 17,490 | 15,070 |
| 2014 | 17,592 | 15,200 |
| 2015 | 17,680 | 15,060 |
| 2016 | 17,688 | 14,440 |
| 2017 | 17,547 | 14,210 |
| 2018 | 17,356 | 14,010 |
| 2019 | 16,938 | 14,370 |
| 2020 | 16,784 | 14,230 |
| 2021 | 17,176 | 13,620 |
| 2022 | 17,005 | 13,660 |
| 2023 | 17,145 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 51103
12 nearest ZIP centroids (any distance)
- 51104Sioux City2.6 miPop 22,792 · Income $74,984
- 57049North Sioux City3.1 miPop 7,814 · Income $93,239
- 51101Sioux City3.3 miPop 1,077 · Income $18,103
- 51105Sioux City4.3 miPop 10,726 · Income $46,940
- 68776South Sioux City4.3 miPop 15,034 · Income $68,686
- 51108Sioux City5.9 miPop 5,637 · Income $78,333
- 51109Sioux City6.3 miPop 3,731 · Income $70,750
- 51111Sioux City7.6 miPop 48 · Income $45,250
- 57038Jefferson7.6 miPop 1,713 · Income $86,895
- 51106Sioux City8.0 miPop 28,381 · Income $74,486
- 68731Dakota City8.0 miPop 3,691 · Income $85,815
- 68743Jackson9.5 miPop 796 · Income $71,467
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 51103, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 51103 FAQ
- What city is ZIP code 51103 in?
- 51103 is in Sioux City, IA.
- What county is 51103 in?
- 51103 is in Woodbury County.
- What is the median household income in 51103?
- The median household income in 51103 is $57,212.
- Which ZIP codes are near 51103?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 51103.