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ZIP code

51106

Sioux City, IA

STANDARD

51106 covers Sioux City in Woodbury County, with 28,381 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

ACS 2023 population

28,381

Median household income

$74,486

Median home value

$186,300

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 51106. Methodology

ZIP code map of 51106

Census ZCTA boundary for ZIP 51106 in Sioux City, Iowa
Census ZCTA boundary for ZIP 51106 in Sioux City, Iowa. A ZCTA is not the same as a USPS ZIP code. Boundaries: U.S. Census Bureau. Methodology · Data sources
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About ZIP code 51106

Type

STANDARD

City

Sioux City

County

Woodbury County

Timezone

America/Chicago

Area codes

402, 531, 712

Land area

33.5 sq mi

Water area

0.43 sq mi

Households

11,681

Median gross rent

$1,080

More enterprise fields

Timezone
America/Chicago
Area Codes
402, 531, 712
World Region
NA
Country
US

Commercial ZIP directory · not ACS

Commercial ZIP directory population_count for ZCTA 51106. Not ACS. Methodology

People in 51106

Race

  • White22,929
  • Black or African American1,023
  • American Indian or Alaska Native389
  • Asian451
  • Native Hawaiian and Pacific Islander221
  • Other race1,378
  • Two or more races2,264

Hispanic or Latino (any race): 3,370

Age

  • Under 103,685
  • 10 to 194,268
  • 20 to 294,467
  • 30 to 393,625
  • 40 to 493,227
  • 50 to 593,097
  • 60 to 693,128
  • 70 to 791,958
  • 80 and older1,200

Income and housing in 51106

Poverty rate

13.8%

Median earnings

$40,495

Median household income

$74,486

Median home value

$186,300

Median gross rent

$1,080

Education

  • High school graduate93.0%
  • Bachelor's degree27.5%
  • Graduate degree12.1%

Places covering 51106

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.

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.

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

5.6% of this ZIP is outside city limits (a real overlap row, not missing data).

Population history for 51106

IRS populationACS population
30,65115,326020052023

Hover the chart or read the table below (Year | ACS | IRS).

Population history. Year | ACS population | IRS population. ACS and IRS are separate series. Blank cells mean that source did not publish a count for the year.
YearACS populationIRS population
200523,983
200623,247
200724,837
200823,649
200924,044
201024,040
201126,82524,172
201226,10724,060
201325,85424,040
201426,12724,210
201526,31624,340
201626,01224,200
201726,89324,390
201826,70724,400
201926,47424,830
202026,49425,100
202127,49124,990
202227,65225,200
202328,381

ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.

ZIP codes near 51106

12 nearest ZIP centroids (any distance)

  1. 51105Sioux City4.1 miPop 10,726 · Income $46,940
  2. 51101Sioux City4.6 miPop 1,077 · Income $18,103
  3. 51111Sioux City5.1 miPop 48 · Income $45,250
  4. 51054Sergeant Bluff5.8 miPop 5,596 · Income $121,228
  5. 51104Sioux City6.7 miPop 22,792 · Income $74,984
  6. 51030Lawton6.8 miPop 1,630 · Income $78,750
  7. 68776South Sioux City7.1 miPop 15,034 · Income $68,686
  8. 51108Sioux City7.4 miPop 5,637 · Income $78,333
  9. 51007Bronson7.6 miPop 581 · Income $110,341
  10. 51103Sioux City8.0 miPop 17,145 · Income $57,212
  11. 68731Dakota City9.9 miPop 3,691 · Income $85,815
  12. 57049North Sioux City10.9 miPop 7,814 · Income $93,239

ZIP centroids within 2 miles

No other ZIP codes within 2 miles of 51106, measured by Census internal-point centroids. Try a wider radius.

ZIPs within 2 miles of this place

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51106 Sioux City, IA

Looking up ZIP codes within 2 miles of 51106 Sioux City, IA, measured by centroid distance.

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ZIP code 51106 FAQ

What city is ZIP code 51106 in?
51106 is in Sioux City, IA.
What county is 51106 in?
51106 is in Woodbury County.
What is the median household income in 51106?
The median household income in 51106 is $74,486.
Which ZIP codes are near 51106?
Use the radius tool on this page to list ZIP codes within a chosen distance of 51106.