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ZIP Code Database - Facts & Stats

Data Last Updated: February 1, 2023

ZIP Codes for City of Saint Leonard, MD

Saint Leonard, MD Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 20685StandardCalvert6,471

Timezone(s):Eastern (GMT -05:00)
Counties:CALVERT, MD
Population:742 (More Details)
Male Population:360
Female Population:382
Median Age:38
ZIP Codes:1
Area Codes:1
Total Area:345 square miles (county)
Land Area:213 square miles (county)
Water Area:132 square miles (county)

Saint Leonard, MD Demographic Information *

Total population742
Male population360
Female population382
Median age (years)37.7
White Population608
Black Population119
Indian Population2
Asian Population4
Hawaiian Population0
Hispanic Population22
Median age (Male)38.8
Median age (Female)36.8
Total households239
Family households (families)195
Average household size3.1
Average family size3.36
Total housing units252
* Demographic data is based on 2010 Census. Products


  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],