Member Unit Listing
The Middlesex County Retirement System administers benefits for retirees, active members, and inactive members across 74 governmental units within the county.
Towns
- Acton
- Ashby
- Ashland
- Ayer
- Bedford
- Billerica
- Boxborough
- Burlington
- Carlisle
- Chelmsford
- Dracut
- Dunstable
- Groton
- Holliston
- Hopkinton
- Hudson
- Lincoln
- Littleton
- North Reading
- Pepperell
- Sherborn
- Shirley
- Stow
- Sudbury
- Tewksbury
- Townsend
- Tyngsborough
- Wayland
- Westford
- Weston
- Wilmington
Districts and Authorities
- Acton-Boxborough Regional School District
- Acton Housing Authority
- Acton Water Supply
- Ayer Housing Authority
- Ayer-Shirley Regional School District
- Bedford Housing Authority
- Billerica Housing Authority
- Burlington Housing Authority
- Chelmsford Housing Authority
- Chelmsford Water District
- Dracut Housing Authority
- Dracut Water Supply District
- East Chelmsford Water District
- East Middlesex Mosquito Control
- Greater Lowell Regional School District
- Hyphenate Groton-Dunstable
- Groton Housing Authority
- Holliston Housing Authority
- Hopkinton Housing Authority
- Hudson Housing Authority
- Hyphenate Lincoln-Sudbury
- Littleton Housing Authority
- Middlesex County Retirement Office
- Nashoba Valley Regional School District
- North Chelmsford Water District
- North Middlesex Regional Emergency Communication Center
- North Middlesex Regional School District
- North Reading Housing Authority
- Pepperell Housing Authority
- Shawsheen Valley Regional School District
- Shirley Water District
- South Middlesex Regional School District
- Sudbury Housing Authority
- Sudbury Water District
- Tewksbury Housing Authority
- Tyngsborough Housing Authority
- Tyngsborough Water District
- Wayland Housing Authority
- West Groton Water District Supply
- Westford Housing Authority
- Wilmington Housing Authority