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ZIP code 51105: Sioux City, IA

51105 is a ZIP code in Sioux City, Iowa, mainly in Woodbury County, part of the Sioux City, IA-NE-SD metro area. About 10,415 people live here.

Population
10,415
Median household income
$51,786
Typical home value
$137,300+0.3% in 12 months
Median rent
$859gross, per month
Median age
29.6
Homeowners
48.2%of occupied homes
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Shaded: ZIP code 51105's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 51105 details

CitySioux City
StateIowa
CountyWoodbury County
Metro areaSioux City, IA-NE-SD
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area6 sq mi, plus 0 sq mi of water
Population density1,750 people per sq mi
Bachelor's degree or higher7.8% of adults 25+
Average commute16.9 minutes
Center coordinates42.50787, -96.36634

Median rent in 51105 by bedrooms

SizeMedian gross rent
Studio$566/mo
1 bedroom$721/mo
2 bedrooms$915/mo
3 bedrooms$984/mo
4 bedrooms$1,656/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 51105

ZIP codeCityDistancePopulation
51101Sioux City, IA1.7 mi1,031
51104Sioux City, IA2.6 mi23,197
51108Sioux City, IA4.1 mi5,960
51106Sioux City, IA4.1 mi28,592
51103Sioux City, IA4.3 mi16,895
68776South Sioux City, NE5.2 mi15,373
51111Sioux City, IA6.3 mi39
57049North Sioux City, SD7.4 mi7,962

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 51105?

A typical home in ZIP code 51105 is worth about $137,300 (Zillow Home Value Index). The median household here earns $51,786 a year. See what buying here would cost per month, with Iowa average taxes and insurance filled in.

Monthly payment for a $137,300 homeWhat can a $51,786 income afford?Rental property numbers

About ZIP code 51105

What city is ZIP code 51105?

ZIP code 51105 is in Sioux City, IA, in Woodbury County.

What county is ZIP code 51105 in?

51105 is mainly in Woodbury County, Iowa.

What is the population of ZIP code 51105?

About 10,415 people live in ZIP code 51105, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 51105 in?

51105 is in Central Time (UTC−6). It observes daylight saving time.

What other ZIP codes does Sioux City have?

Sioux City, IA also uses 51101, 51102, 51103, 51104, 51106, 51108, 51109 and 51111.