Potomac MD Zip Code Map

Potomac is an unincorporated community and census-designated place in Montgomery County, Maryland, United States. As of the 2020 census, it had a population of 47,018. It is named after the nearby Potomac River. A part of the Washington metropolitan area, many Potomac residents work in nearby Washington, D.C., and Northern Virginia.
  • Elevation: 292 ft (89 m)
  • Country: United States
  • State: Maryland
  • County: Montgomery
  • First settled: 1714
  • ZIP Codes: 20854, 20859
  • Area code(s): 301, 240
Data from: en.wikipedia.org