ZIP CodesZIP codes in Washtenaw County, Michigan
Washtenaw County, Michigan has 19 ZIP codes in this list, from 48103 to 48198. They cover 11 places, among them Ann Arbor, Ypsilanti, Bridgewater and Chelsea.
Nothing in this county matches.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 48103 | Ann Arbor | 66.5 | 42.279, -83.784 |
| 48104 | Ann Arbor | 7.8 | 42.269, -83.728 |
| 48105 | Ann Arbor | 49.5 | 42.304, -83.707 |
| 48106 | Ann Arbor | no area | 42.254, -83.837 |
| 48107 | Ann Arbor | no area | 42.254, -83.837 |
| 48108 | Ann Arbor | 16.8 | 42.233, -83.701 |
| 48109 | Ann Arbor | 1.4 | 42.278, -83.741 |
| 48113 | Ann Arbor | no area | 42.254, -83.837 |
| 48115 | Bridgewater | no area | 42.160, -83.912 |
| 48118 | Chelsea | 86.2 | 42.321, -84.033 |
| 48130 | Dexter | 64.0 | 42.358, -83.900 |
| 48158 | Manchester | 95.1 | 42.156, -84.033 |
| 48175 | Salem | no area | 42.406, -83.578 |
| 48176 | Saline | 70.8 | 42.170, -83.785 |
| 48189 | Whitmore Lake | 34.2 | 42.429, -83.783 |
| 48190 | Whittaker | 0.8 | 42.124, -83.595 |
| 48191 | Willis | 16.1 | 42.129, -83.569 |
| 48197 | Ypsilanti | 41.2 | 42.233, -83.634 |
| 48198 | Ypsilanti | 33.4 | 42.244, -83.583 |
The ZIP code areas of Washtenaw County add up to about 584 square miles of land (1,512 sq km) as the Census Bureau draws them. The largest is 48158 (Manchester), with 95.1 square miles.
Places with more than one code here: Ann Arbor (8 codes), Ypsilanti (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Ann Arbor, MI 48103.
- 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.