County Government Departments
- Board of Commissioners
- Administrator
- 14-A District Court
- 911 Dispatch
- Building Inspection
- Children's Services
- Civic Infrastructure Community of Interest
- Clerk/Register of Deeds
- Community Collaborative of Washtenaw County
- Community Corrections
- Community Development
- Community Mental Health
- Community Mental Health Partnership of Southeastern Michigan
- Community Support and Treatment Services
- Corporation Counsel
- Criminal Justice Collaborative Council
- Department of Human Services
- Drain Commissioner (now Water Resources Commissioner)
- Elections
- Emergency Management
- Employment Training and Community Services
- Environmental Health
- Equalization
- Facilities Management
- Finance
- Friend of the Court
- Geographic Information Systems (GIS)
- Head Start
- Human Resources
- Human Services Department
- Human Services Community Collaborative
- Information Technology
- Medical Control Authority
- Medical Examiner
- MSU Extension
- Parks and Recreation
- Police Services Steering Committee (PSSC)
- PORT (Project Outreach)
- Prosecuting Attorney
- Public Defender
- Public Health
- Purchasing
- Risk Management
- Road Commission
- Sheriff
- Soil Erosion
- Strategic Planning, Office of
- Treasurer
- Trial Court
- Veteran Affairs
- Washtenaw Community Health Organization
- Washtenaw Health Plan
- Water Resources Commissioner
