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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Mountainburg, AR

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Area Code(s):479
Timezone(s):Central (GMT -06:00)
City Population:631 (More Details)
CBSA:Fort Smith, AR-OK
Congressional District(s):03, 04
Land Area:591 square miles (county)
Water Area:12 square miles (county)

1 ZIP Code

Mountainburg, AR ZIP Code Boundaries

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Mountainburg, AR Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Mountainburg, AR Demographic Information *

Total population**631
Male population310
Female population321
Median age (years)36.5
White Population603
Black Population0
Indian Population19
Asian Population1
Hawaiian Population0
Hispanic Population3
Median age (Male)35.2
Median age (Female)37.4
Total households270
Family households (families)160
Average household size2.34
Average family size3.09
Total housing units315
* Demographic data is based on 2010 Census for the City of MOUNTAINBURG.
** 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],