District (Middlesex County, PK–12, serving Acton and Boxborough) Amherst-Pelham Regional School District (Franklin and Hampshire Counties, 7–12, serving Amherst, Leverett, Pelham and Shutesbury) Ashburnham-Westminster Regional School District (Worcester County, PK–12, serving Ashburnham and Westminster) Athol-Royalston Regional School District (Worcester County, PK–12, serving Athol and Royalston) Ayer-Shirley Regional School District (Middlesex County, PK–12, serving Ayer and Shirley; also serving Devens through a grade tuition agreement) B Berkshire Hills Regional School District (Berkshire County, PK–12, serving Great Barrington, Stockbridge and West Stockbridge; also serving grades 7–12 from Farmington River Regional through a grade tuition agreement) Berlin-Boylston Regional School District (Worcester County, PK–12, serving Berlin and Boylston) Blackstone-Millville Regional School District (Worcester County, PK–12, serving Blackstone and Millville) Bridgewater-Raynham Regional School District (Bristol and Plymouth Counties, PK–12, serving Bridgewater and Raynham) C Central Berkshire Regional School District (Berkshire and Hampshire Counties, PK–12, serving Becket, Cummington, Dalton, Hinsdale, Peru, Washington and Windsor) Chesterfield-Goshen Regional School District (Hampshrie county, PK–6, serving Chesterfield and Goshen) Concord-Carlisle Regional School District (Middlesex County, 9–12, serving Carlisle and Concord) D Dennis-Yarmouth Regional School District (Barnstable County, PK–12, serving Dennis and Yarmouth) Dighton-Rehoboth Regional School District (Bristol County, PK–12, serving Dighton and Rehoboth) Dover-Sherborn Regional School District (Middlesex and Norfolk Counties, 6–12, serving Dover and Sherborn) Dudley-Charlton Regional School District (Worcester County, PK–12, serving Charlton and Dudley) F Farmington River Regional School District (Berkshire County, PK–6, serving Otis and Sandisfield) Freetown-Lakeville Regional School District (Bristol and Plymouth Counties, PK–12, serving Freetown and Lakeville) Frontier Regional School District (Franklin County, 7–12, serving Conway, Deerfield, Sunderland and Whately) G Gateway Regional School District (Hampden and Hampshire Counties, PK–12, serving Blandford, Chester, Huntington, Middlefield, Montgomery and Russell; also serving Worthington (7–12) through a grade tuition agreement) Gill-Montague Regional School District (Franklin County, PK–12, serving Gill and Montague; also serving Erving (7–12) through a grade tuition agreement) Groton-Dunstable Regional School District (Middlesex County, PK–12, serving Dunstable and Groton) H Hamilton-Wenham Regional School District (Essex County, PK–12, serving Hamilton and Wenham) Hampden-Wilbraham Regional School District (Hampden County, PK–12, serving Hampden and Wilbraham) Hampshire Regional School District (Hampshire County, 7–12, serving Chesterfield, Goshen, Southampton, Westhampton and Williamsburg) Hawlemont Regional School District (Franklin County, PK–6, serving Charlemont and Hawley) Hoosac Valley Regional School District (Berkshire County, PK–12, serving Adams and Cheshire; also serving Savoy (7–12) through a grade tuition agreement) K King Philip Regional School District (Norfolk County, 7–12, serving Norfolk, Plainville and Wrentham) L Lincoln-Sudbury Regional