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Groton Dunstable Regional

Public Grades 9-12
45th
SchoolDigger Rank ?
of 353 Massachusetts High Schools
Better than 87% of Massachusetts high schools
Summary

Groton Dunstable Regional is a public high school in Groton, MA, serving 659 students in grades 9–12 as part of the Groton-Dunstable district. The school ranks 45th of 353 Massachusetts high schools (87th percentile, 4 stars), while the district ranks 34th of 351 (90th percentile, 5 stars). Historically, it was a top-tier school, at the 91st–98th percentile from 2015–16 through 2022–23 and peaking at 6th of 347 in 2022–23. Recently, it has slipped to the 86th–89th percentile—still strong, but not top tier. Nearby, Westford Academy and Littleton High School rank higher statewide (15th and 20th in 2025–26).

In 2025–26, 10th-grade MCAS proficiency was 69.4% in English language arts, 75% in math, 65.63% in science, and 58.82% in biology—well above state averages of 45.48%, 43.73%, 40.5%, and 37.68%. Math is the strongest relative subject, about 31 points above state. Compared with nearby schools, math is behind Westford Academy (80.1%) and Littleton High School (75.83%) but ahead of Chelmsford High (66.16%). ELA trails Westford Academy and Francis W. Parker Charter Essential School (76.12%) but leads Chelmsford (68.47%). Science is roughly tied with the charter school (65.67%) but well below Littleton (84.35%) and Westford (78.09%). Biology is comparatively weaker, below Littleton, Westford, Ayer Shirley Regional High School (65.63%), Chelmsford (64.14%), and slightly below Tyngsborough High School (58.97%), though still far above state.

Graduation and dropout outcomes are excellent: 2024–25 graduation rate was 97.5%, and the dropout rate was 0.0%, tied for best among nearby schools. The school also stands out for subgroup performance: special education students ranked 15th of 298 (95th percentile, 5 stars), and low-income students ranked 43rd of 340 (87th percentile, 4 stars). Resources are mid-to-high: $17,906 per student in 2020–21 and a student-teacher ratio of 13.7 in 2024–25. It spends more than the two higher-ranked schools but does not outperform them, while spending less than Nashoba Valley Technical High School and Gr Lowell Regional Vocational Technical and outperforming them. At 659 students, enrollment is mid-sized for area. Overall, it is a strong local option with standout math, excellent graduation/dropout results, and notable subgroup effectiveness, though not top nearby choice.

659
Students ?
13.7
Student/teacher ratio ?
$21,561
Per pupil spending ?
9.9%
Directly certified for free meals (2024-25) ?
All students in Massachusetts receive free school meals.
 703 Chicoppe Row
       Groton, MA  01450-0730

(978) 448-6362

District: Groton-Dunstable


Feeder schools for Groton Dunstable Regional:

Elementary:    Florence Roche School
    Swallow/Union School
Middle:    Groton Dunstable Regional Middle
Racial breakdown:

White:
82.1%
Asian:
8.5%
Hispanic:
3.6%
more
 See top rated Massachusetts high schools

 Compare Groton Dunstable Regional to nearby high schools!
At a glance
▼ Ranking trend: Declining — 95th percentile in 2016 → 87th in 2026
Strengths
✓Test scores above the Massachusetts average (67% vs 42% meeting standards)
✓Ranks in the top 13% of Massachusetts high schools
✓98% graduate within 4 years
Worth a look
!Ranking has slipped — down 8 percentile points since 2016
Students meeting standards (2025-2026) ?
This school67%
District avg67%
Massachusetts avg42%
45th of 353
Massachusetts public high schools ?
Top 13%▼ down 8 pts since 2016
From top 5% (2016) to top 13% (2026)
See the entire ranking list of Massachusetts High Schools →
★★★★★
SchoolDigger rating ?
34th of 351Groton-Dunstable among Massachusetts districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankMassachusetts percentileRating
202689.145 of 35387.3%★★★★☆
202588.450 of 34985.7%★★★★☆
202489.538 of 34889.1%★★★★☆
202395.36 of 34798.3%★★★★★
202289.628 of 34291.8%★★★★★
202187.427 of 28590.5%★★★★★
201989.510 of 35197.2%★★★★★
201882.527 of 34592.2%★★★★★
201783.97 of 34898.0%★★★★★
201682.618 of 35194.9%★★★★★
201583.113 of 35496.3%★★★★★
201480.926 of 34792.5%★★★★★
201382.215 of 34495.6%★★★★★
201281.234 of 34090.0%★★★★★
201183.128 of 34091.8%★★★★★
201088.210 of 33597.0%★★★★★
200987.714 of 32295.7%★★★★★
200888.320 of 31993.7%★★★★★
200787.516 of 31694.9%★★★★★
200687.025 of 31492.0%★★★★★
200586.731 of 31190.0%★★★★★
200489.124 of 30792.2%★★★★★
200387.036 of 30488.2%★★★★☆

Asian

YearAvg scoreStatewide rankMassachusetts percentileRating
202685.87 of 9492.6%★★★★★
202542.159 of 9135.2%★★☆☆☆
202477.424 of 9875.5%★★★★☆
202383.27 of 9692.7%★★★★★
201970.739 of 9759.8%★★★☆☆
201870.229 of 9168.1%★★★☆☆

Disabled

YearAvg scoreStatewide rankMassachusetts percentileRating
202284.739 of 29586.8%★★★★☆
201996.611 of 29996.3%★★★★★
201890.924 of 29992.0%★★★★★

Female

YearAvg scoreStatewide rankMassachusetts percentileRating
202689.440 of 34088.2%★★★★☆
202588.247 of 33786.1%★★★★☆
202490.231 of 34290.9%★★★★★
202395.76 of 33998.2%★★★★★
202286.642 of 34087.6%★★★★☆
202189.213 of 28195.4%★★★★★
201988.214 of 34295.9%★★★★★
201883.612 of 33996.5%★★★★★

Low Socio Economic Status

YearAvg scoreStatewide rankMassachusetts percentileRating
202682.343 of 34087.4%★★★★☆
202587.239 of 33488.3%★★★★☆
202497.77 of 33897.9%★★★★★
202395.011 of 33896.7%★★★★★
202279.852 of 33284.3%★★★★☆
201991.016 of 33095.2%★★★★★

Male

YearAvg scoreStatewide rankMassachusetts percentileRating
202686.153 of 34484.6%★★★★☆
202587.154 of 33984.1%★★★★☆
202487.641 of 34288.0%★★★★☆
202394.020 of 34394.2%★★★★★
202290.525 of 33992.6%★★★★★
202185.735 of 28187.5%★★★★☆
201991.111 of 34696.8%★★★★★
201883.830 of 34391.3%★★★★★

Special Education

YearAvg scoreStatewide rankMassachusetts percentileRating
202695.815 of 29895.0%★★★★★
202571.563 of 30279.1%★★★★☆
202498.110 of 28996.5%★★★★★
202396.316 of 30194.7%★★★★★
202275.661 of 33982.0%★★★★☆
201992.317 of 34895.1%★★★★★
201882.347 of 34486.3%★★★★☆

White

YearAvg scoreStatewide rankMassachusetts percentileRating
202682.653 of 30282.5%★★★★☆
202584.453 of 29882.2%★★★★☆
202484.843 of 30285.8%★★★★☆
202393.613 of 30195.7%★★★★★
202286.236 of 30088.0%★★★★☆
202183.533 of 24986.7%★★★★☆
201989.213 of 30295.7%★★★★★
201881.533 of 30389.1%★★★★☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Special Education (2026)95th percentile+8 vs school
Asian (2026)93rd percentile+5 vs school
Female (2026)88th percentile~ school
Low Socio Economic Status (2026)87th percentile~ school
Disabled (2022)87th percentile-5 vs school
Male (2026)85th percentile-3 vs school
White (2026)82nd percentile-5 vs school
By subject vs Massachusetts (2025-2026) ?
Mathematics75%+31 vs state
English Language Arts69%+24 vs state
Science66%+25 vs state
Biology59%+21 vs state

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Frequently Asked Questions about Groton Dunstable Regional

Students at Groton Dunstable Regional are 82% White, 8% Asian, 4% Hispanic, 3% African American, 3% Two or more races.

Groton Dunstable Regional is fed by the following schools:

Elementary : Florence Roche School
Elementary : Swallow/Union School
Middle : Groton Dunstable Regional Middle

Groton Dunstable Regional ranks 45th of 353 Massachusetts high schools. SchoolDigger rates this school 4 stars out of 5.

In the 2024-25 school year, 659 students attended Groton Dunstable Regional.

Rate Groton Dunstable Regional!



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Latest Massachusetts data All new data »
2024–25 school spending dataNewNov 1, 2026
2020–21 through 2023–24 school spending data (updated)NewNov 1, 2026
2023–24 through 2024–25 teacher salary dataNewNov 1, 2026
2020–21 through 2022–23 teacher salary data (updated)NewNov 1, 2026


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Massachusetts Department of Elementary and Secondary Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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