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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Le Mars, IA

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Area Code(s):712
Timezone(s):Central (GMT -06:00)
City Population:9,826 (More Details)
Congressional District(s):04
Land Area:863 square miles (county)
Water Area:1 square miles (county)

1 ZIP Code

Le Mars, IA ZIP Code Boundaries

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Le Mars, IA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
51031Standard12,336100.00%LEMARS, STRUBLE

Le Mars, IA Demographic Information *

Total population**9,826
Male population4,760
Female population5,066
Median age (years)39.2
White Population9,255
Black Population53
Indian Population29
Asian Population73
Hawaiian Population2
Hispanic Population530
Median age (Male)36.7
Median age (Female)41.5
Total households4,013
Family households (families)2,593
Average household size2.39
Average family size3
Total housing units4,220
* Demographic data is based on 2010 Census for the City of LE MARS.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],