Washtenaw County, Michigan Zip Codes
| Ypsilanti | 66,422 |
| Ann Arbor | 54,563 |
| Ann Arbor | 45,161 |
| Ypsilanti | 39,867 |
| Ann Arbor | 37,598 |
| Ann Arbor | 26,888 |
| Saline | 23,240 |
| Dexter | 16,731 |
| Whitmore Lake | 13,718 |
| Chelsea | 13,001 |
| Manchester | 7,883 |
| Ann Arbor | 5,773 |
| Willis | 4,059 |
| Whittaker | 187 |
- Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.