Ann Arbor, Michigan

Ann Arbor, Michigan, in Washtenaw County, has ZIP codes 48103, 48104, 48105, 48106, 48107, 48108 and others, and area code 734, with 679 as an overlay.

ZIP codes: 48103, 48104, 48105, 48106 …
Area codes: 734, 679
County: Washtenaw County
State: Michigan
Time zone: Eastern Time
Coordinates: 42.2655, -83.7714

ZIP codes in Ann Arbor

ZIP code	Post office	County	Area codes
48103	Ann Arbor	Washtenaw County	734, 679
48104	Ann Arbor	Washtenaw County	734, 679
48105	Ann Arbor	Washtenaw County	734, 679
48106^*	Ann Arbor	Washtenaw County	734, 679
48107^*	Ann Arbor	Washtenaw County	734, 679
48108	Ann Arbor	Washtenaw County	734, 679
48109	Ann Arbor	Washtenaw County	734, 679
48113^*	Ann Arbor	Washtenaw County	734, 679

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for Ann Arbor

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

Ann Arbor is in the Eastern Time zone.

Towns near Ann Arbor

Barton Hills5.9 km (3.7 mi)
Saline10.7 km (6.6 mi)
Ypsilanti13.8 km (8.6 mi)
Dexter14.8 km (9.2 mi)
Bridgewater16.4 km (10 mi)
Whitmore Lake18.2 km (11 mi)
Milan20.8 km (13 mi)
Hamburg21.1 km (13 mi)

Local numbers in area code 734

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