ZIP CodesZIP codes in Isabella County, Michigan
Isabella County, Michigan has 8 ZIP codes in this list, from 48804 to 49310. They cover 6 places, among them Mount Pleasant, Rosebush, Shepherd and Weidman.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 48804 | Mount Pleasant | no area | 43.641, -84.847 |
| 48858 | Mount Pleasant | 174 | 43.601, -84.774 |
| 48859 | Mount Pleasant | 0.2 | 43.565, -84.847 |
| 48878 | Rosebush | 32.1 | 43.684, -84.783 |
| 48883 | Shepherd | 115 | 43.566, -84.587 |
| 48893 | Weidman | 51.2 | 43.645, -85.005 |
| 48896 | Winn | 0.3 | 43.523, -84.902 |
| 49310 | Blanchard | 87.6 | 43.523, -85.059 |
The ZIP code areas of Isabella County add up to about 461 square miles of land (1,193 sq km) as the Census Bureau draws them. The largest is 48858 (Mount Pleasant), with 174 square miles.
Places with more than one code here: Mount Pleasant (3 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Mount Pleasant, MI 48804.
- 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.