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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Lamar, AR

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Counties:JOHNSON, AR
Area Code(s):479
Timezone(s):Central (GMT -06:00)
City Population:1,605 (More Details)
Congressional District(s):04
Land Area:660 square miles (county)
Water Area:23 square miles (county)

1 ZIP Code

Lamar, AR ZIP Code Boundaries

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Lamar, AR Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Lamar, AR Demographic Information *

Total population**1,605
Male population774
Female population831
Median age (years)38.2
White Population1,496
Black Population9
Indian Population18
Asian Population2
Hawaiian Population1
Hispanic Population66
Median age (Male)36.3
Median age (Female)39.4
Total households639
Family households (families)423
Average household size2.42
Average family size2.89
Total housing units725
* Demographic data is based on 2010 Census for the City of LAMAR.
** 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],