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ZIP Code Database - Facts & Stats

Data Last Updated: November 1, 2022

ZIP Codes for City of Gwynn Oak, MD

Gwynn Oak, MD Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 21207StandardBaltimore48,133

Timezone(s):Eastern (GMT -05:00)
Population:48,133 (More Details)
Male Population:21,919
Female Population:26,214
Median Age:39
ZIP Codes:1
Area Codes:3
Total Area:682 square miles (county)
Land Area:598 square miles (county)
Water Area:83 square miles (county)

Gwynn Oak, MD Demographic Information *

There is no Census data for the city of GWYNN OAK, MD. We have pulled information for the ZIP Code 21207 instead.
Total population48,133
Male population21,919
Female population26,214
Median age (years)38.7
White Population5,146
Black Population40,601
Indian Population138
Asian Population551
Hawaiian Population15
Hispanic Population1,616
Median age (Male)36
Median age (Female)40.8
Total households18,753
Family households (families)12,034
Average household size2.54
Average family size3.14
Total housing units20,272
* 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],