Zip Area Code

Potomac Heights, Maryland

No ZIP code carries the name of Potomac Heights, Maryland, in Charles County; the nearest ZIP codes are 20616 and 20658, in area code 301, with overlays 227 and 240.

Nearest ZIP
20616, 20658
Area codes
301, 227, 240
Time zone
Eastern Time
Coordinates
38.5982, -77.1323

Nearest ZIP codes to Potomac Heights

These are the ZIP codes nearest to Potomac Heights, each listed with the post office it is named after.

ZIP codePost officeCountyArea codes
20616Bryans RoadCharles County301, 227, 240
20658MarburyCharles County301, 227, 240

Area codes for Potomac Heights

  • Area code 301

    In service since 1947. Shares its area with 227 and 240. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 227

    In service since June 14, 2023. Shares its area with 240 and 301. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 240

    In service since June 1, 1997. Shares its area with 227 and 301. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Potomac Heights is in the Eastern Time zone.

Towns near Potomac Heights