| Business | Phone |
| Washington Assessing 57900 Van Dyke Rd, Washington 48094 | (586) 786-0016 |
| Washington Bookkeeping 57900 Van Dyke Rd, Washington 48094 | (586) 786-0020 |
| Washington Clerk 57900 Van Dyke Rd, Washington 48094 | (586) 786-0012 |
| Washington Ordinance 57900 Van Dyke Rd, Washington 48094 | (586) 786-0021 |
| Washington Township Elections 57900 Van Dyke Rd, Washington 48094 | (586) 786-0013 |
| Washington Township Offices 57900 Van Dyke Rd, Washington 48094 | (586) 786-0019 |
| Washington Township Planning 57900 Van Dyke Rd, Washington 48094 | (586) 786-0011 |
| Washington Twp Fire Dept 8100 Wicker, Washington 48094 | (586) 781-6161 |
| Washington Twp Office 57900 Van Dyke Rd, Washington 48094 | (586) 992-8623 |
| Township Building Dept 57900 Van Dyke Rd, Washington 48094 | (586) 786-0018 |
| Township Supervisor 57900 Van Dyke Rd, Washington 48094 | (586) 786-0010 |