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ZIP Code Database - Facts & Stats

Data Last Updated: April 1, 2023

Zip Code 51103, Sioux City, IA

ZIP Code 51103 Details

Zip Code:51103
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:1314 ft
State FIPS:19
County FIPS:193
Division:West North Central
Intro Date:<2004-10

ZIP Code 51103 2010 Census Demographics

Current Population:17,683
2010 Population:17,453
Households per ZIP Code:6,052
Average House Value:$98,300
Avg. Income Per Household:$50,179
Persons Per Household:2.81
White Population:13,151
Black Population:1,228
Hispanic Population:4,455
Asian Population:635
American Indian Population:1,130
Hawaiian Population:31
Other Population:2,291
Male Population:8,706
Female Population:8,747
Median Age:31.80 years
Male Median Age:30.50 years
Female Median Age:33.20 years

ZIP Code 51103 Other Demographics

# Residential Mailboxes:6,293
# Business Mailboxes:316
Total Delivery Receptacles:6,576
Number of Businesses:251
1st Quarter Payroll:$27,303,000
Annual Payroll:$119,588,000
# of Employees:3,775
Water Area:0.178 sq mi
Land Area:12.064 sq mi
118th Congressional District:04
118th Congressional Land Area:22756.75 sq mi
Single Family Delivery Units:5,367
Multi Family Delivery Units:535
# Residential Mailboxes:6,293
# Business Mailboxes:316
Total Delivery Receptacles:6,576

ZIP Code 51103 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 2,815 2,870 +55
Retired Workers: 1,760 1,840 +80
Disabled Workers: 535 530 -5
Widow(er)s and Parents: 200 180 -20
Spouses: 80 75 -5
Children: 240 245 +5
65+: 1,885 1,925 +40
Monthly Benefits - All: $3,288,000 $3,440,000 +$152,000
Monthly Benefits - Retired Workers: $2,290,000 $2,460,000 +$170,000
Monthly Benefits - Widow(ers): $250,000 $225,000 ($25,000)

ZIP Code 51103 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
51102: Previous ZIP Code
Next ZIP Code: 51104


  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],