Glenmont, Maryland

Nearest ZIP codes to Glenmont

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

Area codes for Glenmont

• 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

Glenmont is in the Eastern Time zone.

Towns near Glenmont

• Layhill2.2 km (1.4 mi)
• Wheaton2.5 km (1.6 mi)
• Kemp Mill3.9 km (2.4 mi)
• Colesville4 km (2.5 mi)
• Aspen Hill4 km (2.5 mi)
• North Kensington4.1 km (2.5 mi)
• Leisure World4.2 km (2.6 mi)
• Kensington5.5 km (3.4 mi)