snapshot: school district class size, 2011-12

By Matt Carroll, Globe Staff | Nov. 15, 2012
Class size in public school districts varies widely across the state, with smaller districts, including charter schools, tending to have smaller sizes. The graphic shows the top 25 districts, with a minimum of 100 students. The chart shows all districts. The 2011-2012 data is from the Department of Elementary and Secondary Education.
School districtClass size, 2011-2012Rank
Abby Kelley Foster Charter20277
Abington24.3364
Academy of Strategic Learning Charter10.34
Academy of the Pacific Rim Charter23.9361
Acton22.5350
Acton-Boxborough21.5334
Acushnet23.2357
Adams-Cheshire16.276
Agawam19.2212
Amesbury19.7249
Amherst19.8255
Amherst-Pelham14.431
Andover20.9316
Arlington18.5182
Ashburnham-Westminster 19.3222
Ashland19.6246
Assabet Valley Vocational15.459
Athol-Royalston 17.6136
Atlantis Charter21.2325
Attleboro20.4293
Auburn19.3222
Avon16.276
Barnstable17.2121
Barnstable Charter21.4331
Bedford15.562
Belchertown18.4179
Bellingham19.6246
Belmont21.3327
Benjamin Banneker Charter19.5238
Benjamin Franklin Charter25366
Berkley18.1160
Berkshire Arts & Technology Charter18.1160
Berkshire Hills 17109
Berlin1428
Berlin-Boylston 16.381
Beverly21319
Billerica20277
Blackstone-Millville 19.8255
Blackstone Valley Vocational17.1113
Blue Hills Vocational18153
Boston17.7142
Boston Collegiate Charter19.8255
Boston Evening Academy13.216
Boston Preparatory Charter24.2363
Boston Renaissance Charter21.5334
Bourne18.1160
Boxborough19.7249
Boxford16.381
Boylston17.4129
Braintree18.5182
Brewster18.9201
Bridgewater-Raynham 22.7352
Brimfield15.152
Bristol-Plymouth Vocational17.8147
Bristol County Agricultural18.6187
Brockton19.9266
Brookfield18.2167
Brookline17.7142
Burlington18.8198
Cambridge15.970
Canton19.9266
Cape Cod Lighthouse Charter37.5375
Cape Cod Vocational1428
Carlisle19.8255
Carver19.7249
Central Berkshire 16.8100
Chatham14.431
Chelmsford19.9266
Chelsea21.2325
Chesterfield-Goshen 19.4233
Chicopee18.2167
Christa McAuliffe Regional Charter17109
City On A Hill Charter1548
Clarksburg20.4293
Clinton18.2167
Codman Academy Charter16.276
Cohasset20.6304
Community Day Charter20.8311
Concord17.1113
Concord-Carlisle 19.5238
Conservatory Lab Charter19205
Conway17.6136
Danvers19.3222
Dartmouth20.5298
Dedham16.8100
Deerfield19.4233
Dennis-Yarmouth 16.692
Dighton-Rehoboth 19.2212
Douglas20.9316
Dover18.3174
Dover-Sherborn 15.255
Dracut21.8340
Dudley-Charlton 19.9266
Duxbury20.7309
East Bridgewater28.2374
Eastham17.6136
Easthampton19205
East Longmeadow20.2285
Easton19.8255
Edgartown17.2121
Edward Brooke Charter18.4179
Erving18153
Essex Agricultural17.1113
Everett19.8255
Excel Academy Charter School26.3369
Fairhaven17.1113
Fall River20.2285
Falmouth16.486
Farmington River 17.1113
Fitchburg20.8311
Florida12.59
Four Rivers Charter School14.330
Foxborough17.2121
Foxborough Regional Charter23.7360
Framingham18.6187
Francis W Parker Charter11.35
Franklin21.3327
Franklin County Vocational11.86
Freetown-Lakeville 22343
Frontier 12.812
Gardner19.2212
Gateway 16.9106
Georgetown22.8354
Gill-Montague 14.739
Gloucester17.7142
Grafton19.4233
Granby15.664
Granville17.4129
Greater Fall River Vocational14.637
Greater Lawrence Vocational1673
Greater Lowell Vocational15.152
Greater New Bedford Vocational15.356
Greenfield20.4293
Groton-Dunstable 18.9201
Hadley16.8100
Halifax19.2212
Hamilton-Wenham 19.1210
Hampden-Wilbraham 20.9316
Hampshire 14.845
Hanover21.3327
Harvard19205
Harwich1548
Hatfield14.535
Haverhill18.5182
Hawlemont 13.521
Health Careers Academy Charter17.5133
Hilltown Cooperative Charter22343
Hill View Montessori Charter21.3327
Hingham19.9266
Holbrook19.4233
Holland17.6136
Holliston16.692
Holyoke17.1113
Hopedale18153
Hopkinton19.9266
Hudson17.7142
Hull19.3222
Ipswich19.8255
King Philip 20.5298
Kingston22.9355
Kipp Academy Lynn Charter23.9361
Lanesborough16.9106
Lawrence20.6304
Lawrence Family Development Charter17.9150
Lee14.535
Leicester21.5334
Lenox13.623
Leominster18.5182
Leverett16.797
Lexington19.3222
Lincoln16.276
Lincoln-Sudbury 20.5298
Littleton20277
Longmeadow19.9266
Lowell19.2212
Lowell Community Charter54.8376
Lowell Middlesex Academy Charter13.419
Ludlow17.6136
Lunenburg20.8311
Lynn19.5238
Lynnfield21319
Malden21.1324
Manchester Essex 20.3289
Mansfield20.5298
Marblehead18.7193
Marblehead Community Charter21.4331
Marion19.9266
Marlborough18153
Marshfield23.4358
Marston Mill East Horace Mann Charter19.7249
Martha's Vineyard 12.812
Martha's Vineyard Public Charter16.590
Masconomet 17.9150
Mashpee15.459
Mass. Academy for Math & Science15.356
Mattapoisett16.797
Maynard16.8100
Medfield19.6246
Medford16.381
Media and Technology Charter22343
Medway18.3174
Melrose22.7352
Mendon-Upton 20.6304
Methuen23.5359
Middleborough27.2371
Middleton16.381
Milford19205
Millbury18.6187
Millis19.2212
Milton18.6187
Minuteman Vocational15.356
Mohawk Trail 13.521
Monson20.8311
Montachusett Vocational19.7249
Mount Greylock 15.152
Murdoch Middle Public Charter20277
Mystic Valley Regional Charter26.2368
Nahant27.2371
Nantucket17109
Narragansett 18.2167
Nashoba 19.5238
Nashoba Valley Vocational14.739
Natick20277
Nauset 16.174
Needham19.3222
Neighborhood House Charter22343
New Bedford18.3174
Newburyport20.2285
New Leadership Academy Charter14.739
New Salem-Wendell 17109
Newton19.3222
Norfolk21.6338
Norfolk County Agricultural18.3174
North Adams14.739
Northampton17.3125
Northampton-Smith Vocational12.27
North Andover22343
North Attleborough19.3222
Northborough18.1160
Northborough-Southborough 17.7142
Northbridge19.5238
North Brookfield16.486
North Central Charter1315
Northeast Metro Vocational19.9266
Northern Berkshire Vocational14.431
North Middlesex 21.8340
North Reading21.6338
North Shore Vocational13.826
Norton20.6304
Norwell20.8311
Norwood18.1160
Oak Bluffs13.826
Old Colony Vocational14.739
Old Rochester 18.6187
Orange17.6136
Orleans15.866
Oxford18.2167
Palmer18.1160
Pathfinder Vocational12.27
Peabody19.2212
Pelham17.5133
Pembroke20.3289
Pentucket 20.5298
Petersham16.381
Pioneer Valley 15.970
Pioneer Valley Performing Arts Charter12.710
Pittsfield16.692
Plainville21.4331
Plymouth18153
Plympton15.866
Prospect Hill Academy Charter22.2349
Provincetown82
Quabbin 18.8198
Quaboag 18.5182
Quincy19.4233
Ralph Mahar 14.637
Randolph27.8373
Reading20.4293
Revere20.1283
Richmond16.276
Rising Tide Charter19205
River Valley Charter19.2212
Rochester19.1210
Rockland19.3222
Rockport14.739
Roxbury Preparatory Charter24.4365
Sabis International Charter25.8367
Salem15.664
Salem8.63
Salem Academy Charter15.970
Sandwich18.7193
Saugus19.8255
Savoy5.71
School districtClass size, 2011-2012Rank
Scituate18.9201
Seekonk20.1283
Seven Hills Charter26.3369
Sharon18.1160
Shawsheen Valley Vocational17.9150
Sherborn17.3125
Shrewsbury22343
Shutesbury14.946
Silver Lake 19.8255
Smith Leadership Academy Charter16.486
Somerset20.2285
Somerville17.8147
Southampton18.2167
Southborough18.7193
Southbridge19.5238
Southeastern Vocational1548
Southern Berkshire 12.812
Southern Worcester Vocational13.419
South Hadley16.797
South Middlesex Vocational14.431
South Shore Charter18153
South Shore Vocational13.317
Southwick-Tolland 18.9201
Spencer-East Brookfield 18.7193
Springfield17.3125
Stoneham16.590
Stoughton17.2121
Sturbridge21.8340
Sturgis Charter15.459
Sudbury20.5298
Sunderland16.692
Sutton19.8255
Swampscott21319
Swansea16.8100
Tantasqua 1548
Taunton21319
Tewksbury20.6304
Tisbury17.1113
Topsfield15.866
Tri-County Vocational17.5133
Triton 18.4179
Truro19.2212
Tyngsboro20.3289
Tyngsborough20.3289
Up-Island 13.623
Upper Cape Cod Vocational15.866
Uxbridge19.5238
Wachusett 19.2212
Wakefield19.3222
Wales14.946
Walpole21319
Waltham16.174
Ware21.5334
Wareham17.3125
Watertown17.1113
Wayland18153
Webster20277
Wellesley17.4129
Wellfleet13.317
Westborough16.486
West Boylston17.8147
West Bridgewater19.7249
Westfield18.2167
Westford18.7193
Westhampton16.8100
Weston22.6351
Westport19.9266
West Springfield15.562
Westwood18.6187
Weymouth20.7309
Whately13.623
Whitman-Hanson 23356
Whittier Vocational12.710
Williamsburg18.3174
Williamstown16.9106
Wilmington19.5238
Winchendon19.9266
Winchester19.8255
Winthrop18.8198
Woburn17.4129
Worcester16.692
Worcester19.3222
Wrentham20.4293
SOURCE: Department of Elementary and Secondary Education