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U.S. ZIP Code 20854
5-digit United States postal code #20854, Potomac, MD
ZIP code 20854 is located in the city (place name) Potomac, сounty Montgomery in the state of Maryland. The population in ZIP code 20854 is 49611 and the population density is 567.2. ZIP code 20854 refers to сounty Montgomery having сounty FIPS 24031, the ratio of people from different counties in this ZIP code is as follows: all county weights - 24031: 100%. In the area of the ZIP code 20854 valid time zone America/New_York.
ZIP: 20854
County: Montgomery
Place Name: Potomac
State: Maryland
State Abbreviation: MD
Coordinates: 39° 2' 1.536" N, 77° 13' 13.656" W
Latitude: 39.033760000000
Longitude: -77.220460000000
Population: 49611
Density: 567.2/km2
Time zone: America/New_York
County FIPS: 24031
All county weights: 24031: 100%