| Affordable Housing Committee | |
| Appointments Committees & Commissions | |
| Board of Appeals | |
| Board of Assessors | |
| Board of Health | |
| Board of License Commission | |
| Citizen's Advisory Committee on Finance | |
| Climate Commission | |
| Commission for Diversity, Inclusion, & Community Relations | |
| Conservation Commission | |
| Council On Aging | |
| Economic Development and Capital Assets Committee | |
| Finance Commission | |
| Finance Committee | |
| Fire House Building Committee (FHBC) | |
| Intergovernmental Affairs Committee | |
| Memorials Committee | |
| Metro Boston Homeland Security Region | |
| Metro North Regional Emergency Communications Center | |
| Miller Field Committee | |
| National Gird Electrification Demonstration Program Provision | |
| National Grid | |
| Northeast Massachusetts Mosquito Control & Wetlands Management | |
| Northeast Metropolitan Regional Vocational School District | |
| Ordinance Review Committee | |
| Planning Board | |
| Public Health & Safety | |
| Rules & Ordinance | |
| Scholarship Committee | |
| School Committee | |
| Town Council | |
| Transportation Safety Advisory Committee (TSAC) | |
| Tree Committee | |
| Winthrop Air Pollution, Noise, & Airport Hazards Committee | |
| Winthrop Commission On Disabilities | |
| Winthrop Cultural Council | |
| Winthrop Historical Commission | |
| Winthrop Housing Authority | |
| Winthrop Library Board of Trustees | |
| Winthrop Public Schools | |
| Winthrop Retirement Board | |