ZIP code · Saint Louis · Michigan · United States
ZIP code 48880 — Saint Louis
ZIP code 48880 serves Saint Louis, Michigan.
- Postal code
- 48880Single source Value from one source, not cross-checked.
- City
- Saint Louis
- County
- Gratiot
- State
- Michigan
- Country
- United States
- Coordinates
- 43.4278, -84.5952 — precision precise (locality)
View on OpenStreetMap - Population
- 9,952 (ZCTA, ACS 5-year)
- Median household income
- $56,108
- Median age
- 39.7
- Time zone
- America/Detroit (UTC−5 / UTC−4 DST)
- Area code
- 989Telephone 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