Enrolment

High school enrolment

Lunenburg’s grades 9–12 fell 30.0% from FY2008 to FY2026; Monty Tech, all grades 9–12, rose 6.0%.

High school enrolment change, district by districtour estimate
Value
Monty Tech6.0%
Ashburnham-Westminster-10.3%
Harvard-23.9%
Groton-Dunstable-25.0%
Lunenburg-30.0%
North Middlesex-45.3%

FY2008 to FY2026, DESE’s 1 October headcount in grades 9–12; Monty Tech is all grades 9–12. The change is our arithmetic.

1 · The facts

  • 30.0%

    Lunenburg, grades 9–12, fall, FY2008 to FY2026

    our estimate

  • 10.3%

    Ashburnham-Westminster, grades 9–12, fall, FY2008 to FY2026

    our estimate

  • 25.0%

    Groton-Dunstable, grades 9–12, fall, FY2008 to FY2026

    our estimate

  • 23.9%

    Harvard, grades 9–12, fall, FY2008 to FY2026

    our estimate

  • 45.3%

    North Middlesex, grades 9–12, fall, FY2008 to FY2026

    our estimate

  • 6.0%

    Monty Tech, grades 9–12, rise, FY2008 to FY2026

    our estimate

  • 25.7%

    Ayer Shirley, rise, FY2012 to FY2026

    our estimate

  • 433

    Lunenburg, grades 9–12, FY2026

  • 1,403

    Monty Tech, all of it grades 9–12, FY2026

  • 18

    Monty Tech’s member towns

2 · What it shows

  1. 1

    All 5 K–12 districts counted since FY2008 fell in grades 9–12, by 10.3% to 45.3%.

  2. 2

    Monty Tech rose 6.0% over the same years, to 1,403 pupils.

  3. 3

    Monty Tech draws from 18 member towns; 4 of the 5 comparison districts are regional too.

  4. 4

    Ayer Shirley, counted from FY2012, its first year in DESE’s file, rose 25.7%.

Grades 9–12 headcount, by district and year
YearLunenburgAshburnham-WestminsterAyer ShirleyGroton-DunstableHarvardNorth MiddlesexMonty Tech
FY20264336373866423196411,403
FY20254526294176513287001,417
FY20244496314126843237451,428
FY20234406503946753247691,409
FY20224506143687003237791,413
FY20214746353577163457861,417
FY20204526513747213607991,430
FY20194586573897613998101,422
FY20184427024097854027961,424
FY20174336934098094117951,429
FY20164297014018374168351,436
FY20154257103418624148961,435
FY20144306843258654209521,433
FY20134566533188794339991,432
FY20125046733078604431,0781,435
FY2011535677—8634301,1041,400
FY2010541738—8474321,1421,355
FY2009566741—8304201,1551,341
FY2008619710—8564191,1711,323

DESE’s 1 October headcount, district rows, grades 9 to 12 summed. Monty Tech is its whole district. A blank is a year before the district existed.

Sources

What changed

Version 15 — updated September 20, 2026