ZIP code · Ann Arbor · Michigan · United States
ZIP code 48103 — Ann Arbor
ZIP code 48103 serves Ann Arbor, Michigan.
- Postal code
- 48103Single source Value from one source, not cross-checked.
- City
- Ann Arbor
- County
- Washtenaw
- State
- Michigan
- Country
- United States
- Coordinates
- 42.2794, -83.7840 — precision precise (locality)
View on OpenStreetMap - Population
- 54,635 (ZCTA, ACS 5-year)
- Median household income
- $115,513
- Median age
- 40.2
- Time zone
- America/Detroit (UTC−5 / UTC−4 DST)
- Area code
- 734Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Data generated on 2026-08-21. Methodology · Report an error on this page