Westmont, Illinois

ZIP codes in Westmont

Area codes for Westmont

• Area code 630

  In service since August 3, 1996. Shares its area with 331. Local calls are dialed with 1 plus ten digits.

• Area code 331

  In service since October 7, 2007. Shares its area with 630. Local calls are dialed with 1 plus ten digits.

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

Westmont is in the Central Time zone.

Towns near Westmont

• Clarendon Hills3.1 km (1.9 mi)
• Darien3.3 km (2.1 mi)
• Downers Grove3.4 km (2.1 mi)
• Willowbrook4.7 km (2.9 mi)
• Burr Ridge5.4 km (3.4 mi)
• Hinsdale5.9 km (3.7 mi)
• Woodridge6.5 km (4.0 mi)
• Indian Head Park6.5 km (4.0 mi)