ZIP code
51111
Sioux City, IA
51111 covers Sioux City in Woodbury County, with 48 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 51111. Methodology
ZIP code map of 51111
About ZIP code 51111
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 51111. Not ACS. Methodology
People in 51111
Race
- White66
- Black or African American7
- American Indian or Alaska Native3
- Asian6
- Other race8
- Two or more races7
Hispanic or Latino (any race): 19
Age
- Under 1016
- 10 to 1915
- 20 to 2921
- 30 to 398
- 40 to 497
- 50 to 596
- 60 to 6913
- 70 to 798
- 80 and older3
Income and housing in 51111
Education
- High school graduate100.0%
- Bachelor's degree0.0%
- Graduate degree0.0%
Places covering 51111
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%
- Sergeant Bluff0.0%
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
0.0% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 51111
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 73 | |
| 2006 | 93 | |
| 2007 | 84 | |
| 2011 | 292 | |
| 2012 | 228 | |
| 2013 | 209 | |
| 2014 | 269 | |
| 2015 | 139 | |
| 2016 | 168 | |
| 2017 | 147 | |
| 2018 | 235 | |
| 2019 | 122 | |
| 2020 | 123 | |
| 2021 | 80 | |
| 2022 | 124 | |
| 2023 | 48 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 51111
12 nearest ZIP centroids (any distance)
- 51054Sergeant Bluff3.9 miPop 5,596 · Income $121,228
- 68776South Sioux City4.0 miPop 15,034 · Income $68,686
- 68731Dakota City5.1 miPop 3,691 · Income $85,815
- 51106Sioux City5.1 miPop 28,381 · Income $74,486
- 51101Sioux City5.2 miPop 1,077 · Income $18,103
- 51105Sioux City6.3 miPop 10,726 · Income $46,940
- 51103Sioux City7.6 miPop 17,145 · Income $57,212
- 68030Homer7.7 miPop 641 · Income $87,639
- 51104Sioux City8.0 miPop 22,792 · Income $74,984
- 57049North Sioux City9.4 miPop 7,814 · Income $93,239
- 51052Salix10.0 miPop 1,054 · Income $86,792
- 51108Sioux City10.4 miPop 5,637 · Income $78,333
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 51111, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 51111 FAQ
- What city is ZIP code 51111 in?
- 51111 is in Sioux City, IA.
- What county is 51111 in?
- 51111 is in Woodbury County.
- What is the median household income in 51111?
- The median household income in 51111 is $45,250.
- Which ZIP codes are near 51111?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 51111.