Marlboro, Maryland

Nearest ZIP codes to Marlboro

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

Area codes for Marlboro

• 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

Marlboro is in the Eastern Time zone.

Towns near Marlboro

• Upper Marlboro2.5 km (1.6 mi)
• Brock Hall3.3 km (2.1 mi)
• Brown Station3.3 km (2.1 mi)
• Westphalia4.8 km (3.0 mi)
• Marlboro Meadows5 km (3.1 mi)
• Queensland5 km (3.1 mi)
• Kettering6.4 km (4.0 mi)
• Largo7.3 km (4.5 mi)