Grand Blanc Township, MI ZIP Codes
Grand Blanc Township, Michigan has 2 ZIP codes: for street addresses and for PO boxes.
Mail addressed to Grand Blanc Township covers nearby places too.
Where the 48439 ZIP code reaches
Tap or point to an area to see its ZIP code.Full-size map
48480 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Grand Blanc Township township limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and county subdivision limits (2024).
Check an address in Grand Blanc Township
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?
Grand Blanc Township PO box and business ZIP codes
| ZIP | Type and post office or station |
|---|---|
| 48439 | street delivery Southeast |
| 48480 | PO boxes at the Grand Blanc post office Grand Blanc |
ZIP codes from nearby towns that reach into Grand Blanc Township
- 48442, mailing town Holly, covers 7 percent of Grand Blanc Township
- 48507, mailing town Flint, covers 5 percent of Grand Blanc Township
Why your mail may say Grand Blanc Township when you live outside it
Grand Blanc Township ZIP codes also cover Atlas Township, Mundy Township and Grand Blanc, so a letter addressed to Grand Blanc Township can go to a home outside the township limits.
The reverse happens too: parts of Grand Blanc Township use 48442 and 48507, which mail under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Genesee County property records show which city you are in.
Grand Blanc Township ZIP code questions
What is the main ZIP code for Grand Blanc Township?
48439, the ZIP code of the main Southeast post office at 4065 Manor Dr.
Which Grand Blanc Township ZIP codes are for PO boxes only?
48480. Mail to it goes to boxes at the post office, not to street addresses.
What county is Grand Blanc Township in?
Genesee County.
ZIP codes for towns near Grand Blanc Township
More towns near Grand Blanc Township: Commerce Township, Pontiac, West Bloomfield Township, Bloomfield Township, Rochester Hills, Novi, Farmington Hills, Troy, Shelby Township.
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