Great Mills, Maryland

ZIP codes in Great Mills

Area codes for Great Mills

• 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

Great Mills is in the Eastern Time zone.

Towns near Great Mills

• Lexington Park4.2 km (2.6 mi)
• California4.8 km (3.0 mi)
• Callaway5 km (3.1 mi)
• Patuxent River5.2 km (3.2 mi)
• Wildewood6 km (3.7 mi)
• Park Hall7.2 km (4.5 mi)
• Solomons7.4 km (4.6 mi)
• Dowell8.5 km (5.3 mi)