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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

Zip Code 51104, Sioux City, IA

ZIP Code 51104 Details

Zip Code:51104
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:1271 ft
State FIPS:19
County FIPS:193
Division:West North Central
Intro Date:<2004-10

ZIP Code 51104 2010 Census Demographics

Current Population:22,495
2010 Population:22,104
Households per ZIP Code:8,528
Average House Value:$160,700
Avg. Income Per Household:$64,735
Persons Per Household:2.50
White Population:18,856
Black Population:998
Hispanic Population:3,045
Asian Population:877
American Indian Population:584
Hawaiian Population:58
Other Population:1,560
Male Population:10,682
Female Population:11,422
Median Age:35.00 years
Male Median Age:33.20 years
Female Median Age:36.60 years

ZIP Code 51104 Other Demographics

# Residential Mailboxes:8,998
# Business Mailboxes:254
Total Delivery Receptacles:9,685
Number of Businesses:315
1st Quarter Payroll:$49,469,000
Annual Payroll:$207,924,000
# of Employees:4,787
Water Area:0.001 sq mi
Land Area:7.475 sq mi
118th Congressional District:04
118th Congressional Land Area:22756.75 sq mi
Single Family Delivery Units:6,834
Multi Family Delivery Units:1,706
# Residential Mailboxes:8,998
# Business Mailboxes:254
Total Delivery Receptacles:9,685

ZIP Code 51104 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 3,915 3,940 +25
Retired Workers: 2,825 2,875 +50
Disabled Workers: 465 450 -15
Widow(er)s and Parents: 260 270 +10
Spouses: 130 125 -5
Children: 235 220 -15
65+: 3,035 3,090 +55
Monthly Benefits - All: $5,494,000 $5,664,000 +$170,000
Monthly Benefits - Retired Workers: $4,303,000 $4,473,000 +$170,000
Monthly Benefits - Widow(ers): $379,000 $396,000 +$17,000

ZIP Code 51104 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
51103: Previous ZIP Code
Next ZIP Code: 51105


  1. U.S. Postal Service [Last Updated: 3/1/2023],
  2. Internal Data Creation [Last Updated: 3/1/2023],
  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: 3/1/2023],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],