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ZIP Code Database - Facts & Stats

Data Last Updated: November 1, 2022

ZIP Codes for City of Madison, MD

Madison, MD Covers 2 ZIP Codes

ZIP CodeTypeCountyPopulation
ZIP Code 21648StandardDorchester255
ZIP Code 21677StandardDorchester440

Timezone(s):Eastern (GMT -05:00)
Population:204 (More Details)
Male Population:116
Female Population:88
Median Age:53
ZIP Codes:2
Area Codes:1
Total Area:983 square miles (county)
Land Area:541 square miles (county)
Water Area:442 square miles (county)

Madison, MD Demographic Information *

Total population204
Male population116
Female population88
Median age (years)52.7
White Population178
Black Population21
Indian Population0
Asian Population2
Hawaiian Population0
Hispanic Population3
Median age (Male)48
Median age (Female)58.5
Total households81
Family households (families)64
Average household size2.26
Average family size2.42
Total housing units114
* 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],