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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Custer, WA

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Counties:WHATCOM, WA
Area Code(s):360, 564
Timezone(s):Pacific (GMT -08:00)
City Population:366 (More Details)
CBSA:Bellingham, WA
Congressional District(s):02
Land Area:2,107 square miles (county)
Water Area:397 square miles (county)

1 ZIP Code

Custer, WA ZIP Code Boundaries

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Custer, WA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Custer, WA Demographic Information *

Total population**366
Male population185
Female population181
Median age (years)41.1
White Population327
Black Population2
Indian Population1
Asian Population7
Hawaiian Population0
Hispanic Population32
Median age (Male)38.3
Median age (Female)41.6
Total households138
Family households (families)98
Average household size2.65
Average family size3.18
Total housing units147
* Demographic data is based on 2010 Census for the City of CUSTER.
** 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],