Bay City, MI ZIP Codes
Bay City, Michigan has 4 ZIP codes: 2 for street addresses ( and ), 1 for PO boxes () and 1 for a single organization.
Your street decides which one you use.
Which Bay City ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Bay City ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
48707 and 48710 have no area on the map: they are PO box or single-organization ZIP codes. Dashed line: Bay City city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Bay City ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 48706 | street delivery Station A |
| 48707 | PO boxes at the Bay City post office Bay City |
| 48708 | street delivery Bay City |
| 48710 | one organization Bay City |
Why your mail may say Bay City when you live outside it
Bay City ZIP codes also cover Monitor Township, Portsmouth Township and Frankenlust Township, so a letter addressed to Bay City can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Bay County property records show which city you are in.
Bay City ZIP code questions
What is the main ZIP code for Bay City?
48708, the ZIP code of the main Bay City post office at 1000 Washington Ave.
Which Bay City ZIP codes are for PO boxes only?
48707. Mail to it goes to boxes at the post office, not to street addresses.
What county is Bay City in?
Bay County.
ZIP codes for towns near Bay City
More towns near Bay City: Independence Township, East Lansing, Meridian Township, Orion Township, White Lake Township, Waterford Township, Lansing, Delta Township, Pontiac.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections