East Ridge, Tennessee

Nearest ZIP codes to East Ridge

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

Area codes for East Ridge

• Area code 423

  In service since September 11, 1995. Shares its area with 729. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 729

  In service since September 5, 2025. Shares its area with 423. 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.

Towns near East Ridge

• Ridgeside4.5 km (2.8 mi)
• Chattanooga7 km (4.3 mi)
• Lookout Mountain11.1 km (6.9 mi)
• Lupton City12.3 km (7.6 mi)
• Red Bank14.1 km (8.8 mi)
• Collegedale16.6 km (10 mi)
• Ooltewah17.5 km (11 mi)
• Hixson18 km (11 mi)