Antietam, Maryland

Nearest ZIP codes to Antietam

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

Area codes for Antietam

• 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

Antietam is in the Eastern Time zone.

Towns near Antietam

• Sharpsburg3.3 km (2.1 mi)
• Dargan4.3 km (2.7 mi)
• Mount Briar5.2 km (3.2 mi)
• Trego-Rohrersville Station5.5 km (3.4 mi)
• Keedysville5.8 km (3.6 mi)
• Yarrowsburg6.2 km (3.9 mi)
• Gapland6.9 km (4.3 mi)
• Eakles Mill7.2 km (4.5 mi)