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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Middletown, MD

Middletown, MD Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 21769StandardFrederick11,236240 / 301

Timezone(s):Eastern (GMT -05:00)
Population:4,136 (More Details)
Male Population:2,017
Female Population:2,119
Median Age:40
ZIP Codes:1
Area Codes:2
Total Area:667 square miles (county)
Land Area:660 square miles (county)
Water Area:7 square miles (county)

Middletown, MD Demographic Information *

Total population4,136
Male population2,017
Female population2,119
Median age (years)39.6
White Population3,802
Black Population116
Indian Population11
Asian Population114
Hawaiian Population3
Hispanic Population129
Median age (Male)38.4
Median age (Female)40.2
Total households1,484
Family households (families)1,166
Average household size2.79
Average family size3.16
Total housing units1,569
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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],