ZIP code
51104
Sioux City, IA
51104 covers Sioux City in Woodbury County, with 22,792 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 51104. Methodology
ZIP code map of 51104
About ZIP code 51104
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 51104. Not ACS. Methodology
People in 51104
Race
- White15,702
- Black or African American1,648
- American Indian or Alaska Native519
- Asian960
- Native Hawaiian and Pacific Islander111
- Other race1,940
- Two or more races2,200
Hispanic or Latino (any race): 4,469
Age
- Under 103,335
- 10 to 193,454
- 20 to 293,158
- 30 to 393,026
- 40 to 492,686
- 50 to 592,618
- 60 to 692,476
- 70 to 791,384
- 80 and older943
Income and housing in 51104
Education
- High school graduate88.8%
- Bachelor's degree28.2%
- Graduate degree8.4%
Places covering 51104
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 51104
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 20,085 | |
| 2006 | 19,365 | |
| 2007 | 20,415 | |
| 2008 | 19,609 | |
| 2009 | 20,116 | |
| 2010 | 20,093 | |
| 2011 | 22,112 | 20,019 |
| 2012 | 21,878 | 19,930 |
| 2013 | 22,509 | 19,830 |
| 2014 | 23,222 | 20,030 |
| 2015 | 22,801 | 20,220 |
| 2016 | 22,223 | 19,730 |
| 2017 | 22,549 | 19,890 |
| 2018 | 22,924 | 19,920 |
| 2019 | 22,981 | 20,180 |
| 2020 | 22,066 | 20,340 |
| 2021 | 23,038 | 19,720 |
| 2022 | 22,759 | 19,880 |
| 2023 | 22,792 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 51104
12 nearest ZIP centroids (any distance)
- 51103Sioux City2.6 miPop 17,145 · Income $57,212
- 51105Sioux City2.6 miPop 10,726 · Income $46,940
- 51101Sioux City2.9 miPop 1,077 · Income $18,103
- 51108Sioux City3.4 miPop 5,637 · Income $78,333
- 57049North Sioux City5.5 miPop 7,814 · Income $93,239
- 68776South Sioux City5.9 miPop 15,034 · Income $68,686
- 51109Sioux City6.2 miPop 3,731 · Income $70,750
- 51106Sioux City6.7 miPop 28,381 · Income $74,486
- 51111Sioux City8.0 miPop 48 · Income $45,250
- 57038Jefferson9.3 miPop 1,713 · Income $86,895
- 51024Hinton9.6 miPop 2,048 · Income $108,892
- 68731Dakota City9.9 miPop 3,691 · Income $85,815
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 51104, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 51104 FAQ
- What city is ZIP code 51104 in?
- 51104 is in Sioux City, IA.
- What county is 51104 in?
- 51104 is in Woodbury County.
- What is the median household income in 51104?
- The median household income in 51104 is $74,984.
- Which ZIP codes are near 51104?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 51104.