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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Alton, IA

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Counties:SIOUX, IA
Area Code(s):712
Timezone(s):Central (GMT -06:00)
City Population:1,216 (More Details)
CBSA:None
Congressional District(s):04
Land Area:768 square miles (county)
Water Area:1 square miles (county)

1 ZIP Code

Alton, IA ZIP Code Boundaries

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Alton, IA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
51003Standard1,700100.00%CARNES

Alton, IA Demographic Information *

Total population**1,216
Male population602
Female population614
Median age (years)36.6
White Population1,166
Black Population8
Indian Population4
Asian Population9
Hawaiian Population0
Hispanic Population57
Median age (Male)37.6
Median age (Female)35.5
Total households478
Family households (families)338
Average household size2.54
Average family size3.07
Total housing units493
* Demographic data is based on 2010 Census for the City of ALTON.
** City and ZIP Code Population will not be equal due to differences in their geographies.


References

  1. U.S. Postal Service [Last Updated: 2/1/2023], https://www.usps.com
  2. ZIP-Codes.com Internal Data Creation [Last Updated: 2/1/2023], https://www.zip-codes.com
  3. U.S. Geological Survey [Updated as needed], https://www.usgs.gov/
  4. U.S. Census [Updated Yearly], https://www.census.gov
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010], https://www.census.gov