ZIP code · South Lyon · Michigan · United States
ZIP code 48178 — South Lyon
ZIP code 48178 serves South Lyon, Michigan.
- Postal code
- 48178Single source Value from one source, not cross-checked.
- City
- South Lyon
- County
- Oakland
- State
- Michigan
- Country
- United States
- Coordinates
- 42.4567, -83.6590 — precision precise (locality)
View on OpenStreetMap - Population
- 37,303 (ZCTA, ACS 5-year)
- Median household income
- $130,781
- Median age
- 42.4
- Time zone
- America/Detroit (UTC−5 / UTC−4 DST)
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