US location post office
ZIP Code 20878
- Zip Code: 20878
- Type: Standard
- Official USPS city name: Gaithersburg
- Official USPS State Code: MD
- Official State Name: Maryland
- ZCTA: TRUE
- Population: 63030.0
- Density: 1110.7
- Primary Official County Code: 24031
- Primary Official County Name: Montgomery
- Official County Name: Montgomery
- Official County Code: 24031
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/New_York (11:47 AM Friday, May 17 2024-05-17 (GMT -0400))
- Geo Point: 39.11253, -77.25142
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