Zip Area Code

Ypsilanti, Michigan

Ypsilanti, Michigan, in Washtenaw County, has ZIP codes 48197 and 48198 and area code 734, with 679 as an overlay.

ZIP codes
48197, 48198
Area codes
734, 679
Time zone
Eastern Time
Coordinates
42.2382, -83.6083

ZIP codes in Ypsilanti

ZIP codePost officeCountyArea codes
48197YpsilantiWashtenaw County734, 679
48198YpsilantiWashtenaw County734, 679

Area codes for Ypsilanti

  • 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

Ypsilanti is in the Eastern Time zone.

Towns near Ypsilanti