Monroe, Michigan

ZIP codes in Monroe

Area codes for Monroe

• Area code 734

  In service since December 13, 1997. Shares its area with 679. Local calls are dialed with seven digits; dialing ten digits also works.

• Area code 679

  In service since November 7, 2025. Shares its area with 313. 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

Monroe is in the Eastern Time zone.

Towns near Monroe

• West Monroe2.3 km (1.4 mi)
• South Monroe4.4 km (2.7 mi)
• La Salle6.8 km (4.2 mi)
• Detroit Beach10.8 km (6.7 mi)
• Luna Pier11.7 km (7.3 mi)
• Woodland Beach12.2 km (7.6 mi)
• Ida13.1 km (8.1 mi)
• Maybee13.2 km (8.2 mi)