ZIP CodesZIP codes in Bay County, Michigan
Bay County, Michigan has 11 ZIP codes in this list, from 48611 to 48747. They cover 9 places, among them Bay City, Auburn, Bentley and Kawkawlin.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 48611 | Auburn | 38.2 | 43.608, -84.103 |
| 48613 | Bentley | 50.5 | 43.927, -84.105 |
| 48631 | Kawkawlin | 32.9 | 43.679, -83.993 |
| 48634 | Linwood | 49.0 | 43.771, -84.051 |
| 48650 | Pinconning | 95.2 | 43.849, -84.008 |
| 48706 | Bay City | 66.3 | 43.609, -83.953 |
| 48707 | Bay City | no area | 43.738, -83.933 |
| 48708 | Bay City | 29.1 | 43.582, -83.878 |
| 48710 | University Center | 0.4 | 43.557, -83.994 |
| 48732 | Essexville | 24.6 | 43.607, -83.822 |
| 48747 | Munger | 31.8 | 43.529, -83.767 |
The ZIP code areas of Bay County add up to about 418 square miles of land (1,083 sq km) as the Census Bureau draws them. The largest is 48650 (Pinconning), with 95.2 square miles.
Places with more than one code here: Bay City (3 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Auburn, MI 48611.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.