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ZIP Code Database - Facts & Stats

Data Last Updated: November 1, 2022

ZIP Codes for City of Washington Grove, MD

Washington Grove, MD Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 20880P.O. BoxMontgomery450

Timezone(s):Eastern (GMT -05:00)
Population:555 (More Details)
Male Population:271
Female Population:284
Median Age:50
ZIP Codes:1
Area Codes:2
Total Area:507 square miles (county)
Land Area:493 square miles (county)
Water Area:14 square miles (county)

Washington Grove, MD Demographic Information *

Total population555
Male population271
Female population284
Median age (years)49.7
White Population473
Black Population22
Indian Population0
Asian Population41
Hawaiian Population0
Hispanic Population31
Median age (Male)48.5
Median age (Female)50.8
Total households230
Family households (families)157
Average household size2.41
Average family size2.87
Total housing units242
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 11/1/2022],
  2. Internal Data Creation [Last Updated: 11/1/2022],
  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],