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ZIP Code Database - Facts & Stats

Data Last Updated: November 1, 2022

ZIP Codes for City of Callaway, MD

Callaway, MD Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 20620StandardSaint Marys1,443

Timezone(s):Eastern (GMT -05:00)
Population:1,443 (More Details)
Male Population:721
Female Population:722
Median Age:37
ZIP Codes:1
Area Codes:2
Total Area:764 square miles (county)
Land Area:357 square miles (county)
Water Area:407 square miles (county)

Callaway, MD Demographic Information *

There is no Census data for the city of CALLAWAY, MD. We have pulled information for the ZIP Code 20620 instead.
Total population1,443
Male population721
Female population722
Median age (years)36.8
White Population1,083
Black Population232
Indian Population8
Asian Population48
Hawaiian Population1
Hispanic Population37
Median age (Male)36.1
Median age (Female)37.1
Total households522
Family households (families)377
Average household size2.76
Average family size3.19
Total housing units557
* 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],