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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

Zip Code 51003, Alton, IA

ZIP Code 51003 Details

Zip Code:51003
State:IA [Iowa]
Counties:SIOUX, IA
Multi County:No
City Alias(es):Alton
City Alias(es) To Avoid Using:Carnes
Area Code:712
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Central (GMT -06:00)
Observes Daylight Saving:Yes
Elevation:1343 ft
State FIPS:19
County FIPS:167
Division:West North Central
Intro Date:<2004-10

ZIP Code 51003 2010 Census Demographics

Current Population:1,407
2010 Population:1,700
Households per ZIP Code:646
Average House Value:$178,000
Avg. Income Per Household:$88,487
Persons Per Household:2.63
White Population:1,657
Black Population:10
Hispanic Population:62
Asian Population:13
American Indian Population:5
Hawaiian Population:0
Other Population:27
Male Population:853
Female Population:847
Median Age:36.80 years
Male Median Age:37.30 years
Female Median Age:36.10 years

ZIP Code 51003 Other Demographics

# Residential Mailboxes:535
# Business Mailboxes:16
Total Delivery Receptacles:772
Number of Businesses:43
1st Quarter Payroll:$1,356,000
Annual Payroll:$6,536,000
# of Employees:177
Water Area:0.029 sq mi
Land Area:54.364 sq mi
118th Congressional District:04
118th Congressional Land Area:22756.75 sq mi
Single Family Delivery Units:494
Multi Family Delivery Units:0
# Residential Mailboxes:535
# Business Mailboxes:16
Total Delivery Receptacles:772

ZIP Code 51003 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 270 270 0
Retired Workers: 210 215 +5
Disabled Workers: 20 20 0
Widow(er)s and Parents: 15 10 -5
Spouses: 10 10 0
Children: 15 15 0
65+: 220 220 0
Monthly Benefits - All: $364,000 $380,000 +$16,000
Monthly Benefits - Retired Workers: $299,000 $320,000 +$21,000
Monthly Benefits - Widow(ers): $20,000 $18,000 ($2,000)

ZIP Code 51003 Statistical Areas

CBSA Name: 
CBSA Type: 
CBSA Division: 
CBSA Division Name: 
CBSA Population:0
CBSA Division Population:0
MSA Name: 
PMSA Name: 
City State Key:W10031
Preferred Last Line Key:W10031
51002: Previous ZIP Code
Next ZIP Code: 51004


  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],