20879   Zip Code Gaithersburg Montgomery MD United States

City Gaithersburg
County Montgomery
State Maryland
Latitude 39.16992
Longitude -77.17416
Population 25,264
Density 2933.16 people per square mile
Time Zone America/New York
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $112,104
Median individual: $47,273

Race

Mode: 34.0% White

Gender

 51.9% female 

Rent

  $1942 / month  

Median house value: $466,177.0

Age

Median: 36.4 years old

Education

With at least college degree: 44.8%
With STEM degree: 57.6%

Marital Status

 51.4% married 

Never married: 34.7%

Labor Force Participation

 71.4% working 

Unemployed: 7.6%

Average Family Size

 3.50 people 

Commute Time

 31.3 minutes 

Health Care

 8.5% uninsured 

Poverty

 7.5%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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