| Capital: | Ann Arbor |
|---|---|
| Origen y Formación del condado: | From parts of Oakland County and Wayne County |
| Población: | 344,791 habitantes |
| Área: | 723 sq mi |
| Localización del condado dentro de Michigan: |
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Localidades en Washtenaw, Michigan
- Ann Arbor
- Ann Arbor Charter Township
- Barton Hills
- Bridgewater Township
- Chelsea
- Dexter
- Dexter Township
- Freedom Township
- Lima Township
- Lodi Township
- Lyndon Township
- Manchester
- Manchester Township
- Milan
- Northfield Township
- Pittsfield Charter Township
- Salem
- Saline
- Saline Township
- Scio Township
- Sharon Township
- Superior Township Washtenaw County
- Sylvan Township Washtenaw County
- Webster Township
- Whitmore Lake
- Whittaker
- Willis
- York Charter Township
- Ypsilanti
- Ypsilanti Township