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ZIP Code Database - Facts & Stats

Data Last Updated: April 1, 2023

Zip Code 51105, Sioux City, IA

ZIP Code 51105 Details

Zip Code:51105
City:Sioux City
State:IA [Iowa]
Multi County:No
City Alias(es):Sioux City
Area Code:712
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Central (GMT -06:00)
Observes Daylight Saving:Yes
Elevation:1119 ft
State FIPS:19
County FIPS:193
Division:West North Central
Intro Date:<2004-10

ZIP Code 51105 2010 Census Demographics

Current Population:10,593
2010 Population:10,216
Households per ZIP Code:3,700
Average House Value:$70,300
Avg. Income Per Household:$41,469
Persons Per Household:2.75
White Population:6,787
Black Population:628
Hispanic Population:3,469
Asian Population:662
American Indian Population:689
Hawaiian Population:66
Other Population:1,967
Male Population:5,224
Female Population:4,992
Median Age:30.00 years
Male Median Age:29.90 years
Female Median Age:30.10 years

ZIP Code 51105 Other Demographics

# Residential Mailboxes:3,852
# Business Mailboxes:352
Total Delivery Receptacles:4,633
Number of Businesses:215
1st Quarter Payroll:$37,299,000
Annual Payroll:$153,371,000
# of Employees:3,499
Water Area:0.025 sq mi
Land Area:5.952 sq mi
118th Congressional District:04
118th Congressional Land Area:22756.75 sq mi
Single Family Delivery Units:2,971
Multi Family Delivery Units:720
# Residential Mailboxes:3,852
# Business Mailboxes:352
Total Delivery Receptacles:4,633

ZIP Code 51105 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 1,345 1,375 +30
Retired Workers: 765 785 +20
Disabled Workers: 340 345 +5
Widow(er)s and Parents: 65 65 0
Spouses: 50 50 0
Children: 125 130 +5
65+: 810 840 +30
Monthly Benefits - All: $1,447,000 $1,528,000 +$81,000
Monthly Benefits - Retired Workers: $934,000 $989,000 +$55,000
Monthly Benefits - Widow(ers): $74,000 $76,000 +$2,000

ZIP Code 51105 Statistical Areas

CBSA: 43580
CBSA Name: Sioux City, IA-NE-SD
CBSA Type: Metro
CBSA Division: 
CBSA Division Name: 
CBSA Population:143,577
CBSA Division Population:0
MSA: 7720
MSA Name: Sioux City, IA-NE MSA
PMSA Name: 
City State Key:W11437
Preferred Last Line Key:W11437
51104: Previous ZIP Code
Next ZIP Code: 51106


  1. U.S. Postal Service [Last Updated: 4/1/2023],
  2. Internal Data Creation [Last Updated: 4/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census American National Standards Institute (ANSI) [Last Updated: 4/1/2023],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],