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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Elk Mills, MD

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Counties:CECIL, MD
Area Code(s):443, 410, 667
Timezone(s):Eastern (GMT -05:00)
City Population:257 (More Details)
CBSA:Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
Congressional District(s):01
Land Area:346 square miles (county)
Water Area:72 square miles (county)

1 ZIP Code

Elk Mills, MD ZIP Code Boundaries

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Elk Mills, MD Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
21920P.O. Box257100.00%

Elk Mills, MD Demographic Information *

There is no Census data for the city of ELK MILLS, MD. We have pulled information for the ZIP Code 21920 instead.
Total population**257
Male population131
Female population126
Median age (years)42.6
White Population229
Black Population17
Indian Population0
Asian Population0
Hawaiian Population0
Hispanic Population2
Median age (Male)41.2
Median age (Female)45
Total households92
Family households (families)65
Average household size2.79
Average family size3.29
Total housing units100
* Demographic data is based on 2010 Census for the City of ELK MILLS.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  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],