Ranks #34 of 335 Massachusetts high schools — top 11%.
Overall rank
#34
of 335 schools
Average SAT
1164+73 vs MA
MA average 1091
Graduation rate
98%
MA average 92%
Plan on college
100%+28 vs MA
MA average 72%
SAT is the average total score of test takers. Graduation is the four-year rate. College is the share of graduates who report plans to attend a 2- or 4-year college.
Cohasset is an affluent coastal town on Massachusetts' South Shore, about 20 miles southeast of Boston. Known for its picturesque harbor, historic maritime heritage, and scenic rocky coastline, the town has long been a desirable seaside community. Cohasset maintains a strong New England character with its village center, working harbor, and numerous conservation areas along the coast.
How it compares
What stands out
+Strongest area: College plans, in the top 1% statewide. 100% of graduates plan to attend a 2- or 4-year college, vs 72% statewide.
↓Trend: Chronic absence has fallen from 14.7% in 2022 to 8.6% in 2025.
↓Trend: Math MCAS is down 12 points since 2023 (86% to 74%); statewide it fell 6 points.
Where it stands among 335 Massachusetts high schools
Bottom of MATop of MA
Overall
Above averagetop 11% · #34
SAT
Above averagetop 25% · #83
ELA MCAS
Excellenttop 10% · #31
Math MCAS
Above averagetop 12% · #38
AP results
Above averagetop 17% · #53
Graduation
Above averagetop 18% · #59
College plans
Excellenttop 1% · #2
The overall rank weighs SAT (30%), MCAS (25%), AP results (20%), and graduates' college plans (25%). Categories rank only the schools with data for them. How we rank
SAT
Average total score1164in 2025 · MA avg 1091
73 points above the MA avg
By section (out of 800)
Reading & writingBetter than average
This school
605
MA avg
556
MathBetter than average
This school
559
MA avg
535
158 students took the SAT.
"MA avg" is the average of the 335 high schools we rank. Only students who choose to take the SAT are counted.
MCAS (10th grade)
Share of 10th graders meeting or exceeding expectations. Statewide results dropped after 2024, when passing the MCAS stopped being a graduation requirement. There was no test in 2020.
English Language Arts75%in 2026 · state 45%
30 points above the state
Math74%in 2026 · state 44%
30 points above the state
Detailed scores
Average scaled score, ELA · Math · Science (500+ = meeting expectations)517 · 510 · —
Achievement percentile vs. MA schools (ELA · Math)93rd · 85th
Student growth percentile, ELA · Math (50 = typical growth)56 · 42
Town figures are FY2026 averages for single-family homes from the Massachusetts Department of Revenue. Assessed values usually run below recent sale prices. "MA median" is the median of the state's 351 towns.
Similar schools elsewhere
Schools with similar test results, demographics, and college plans.