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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Index, WA

Index, WA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 98256P.O. BoxSnohomish420360 / 564

Timezone(s):Pacific (GMT -08:00)
Population:178 (More Details)
Male Population:84
Female Population:94
Median Age:42
ZIP Codes:1
Area Codes:2
Total Area:2,196 square miles (county)
Land Area:2,087 square miles (county)
Water Area:109 square miles (county)

Index, WA Demographic Information *

Total population178
Male population84
Female population94
Median age (years)42
White Population170
Black Population0
Indian Population0
Asian Population3
Hawaiian Population1
Hispanic Population8
Median age (Male)43
Median age (Female)41
Total households80
Family households (families)44
Average household size2.23
Average family size3.02
Total housing units116
* Demographic data is based on 2010 Census.

Index, WA Other Information

28 Cities within 30 miles of Index, WA Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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],