Ranks #136 of 335 Massachusetts high schools — top 41%.
Overall rank
#136
of 335 schools
Average SAT
1154+63 vs MA
MA average 1091
Graduation rate
92%
MA average 92%
Plan on college
76%
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.
Dedham is a historic suburban town located about 10 miles southwest of Boston in Norfolk County. Founded in 1636, it is one of the oldest settlements in Massachusetts and served as the county seat for centuries, giving it a rich architectural heritage including the nation's oldest timber-frame house still standing on its original site. The town balances its colonial past with modern suburban life, featuring a traditional New England town center alongside residential neighborhoods and convenient access to Route 1 and Interstate 95.
How it compares
What stands out
+Strongest area: SAT scores, in the top 28% statewide. The average SAT score is 1154, vs 1091 at the typical MA high school.
!Area to watch: Graduation rate ranks in the bottom 39% statewide.
↓Trend: Chronic absence has fallen from 46.4% in 2022 to 21.9% in 2025.
↑Trend: The average SAT score is up 50 points since 2022 (1104 to 1154).
Where it stands among 335 Massachusetts high schools
Bottom of MATop of MA
Overall
Averagetop 41% · #136
SAT
Above averagetop 28% · #93
ELA MCAS
Averagetop 49% · #159
Math MCAS
Above averagetop 29% · #93
AP results
Averagebottom 41% · #190
Graduation
Averagebottom 39% · #205
College plans
Averagebottom 47% · #179
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 score1154in 2025 · MA avg 1091
63 points above the MA avg
By section (out of 800)
Reading & writingBetter than average
This school
575
MA avg
556
MathBetter than average
This school
579
MA avg
535
145 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 Arts46%in 2026 · state 45%
1 point above the state
Math58%in 2026 · state 44%
14 points above the state
Biologyhigh school science, 2026About average
This school
39%
State
38%
Detailed scores
Average scaled score, ELA · Math · Science (500+ = meeting expectations)497 · 504 · 494
Achievement percentile vs. MA schools (ELA · Math)52nd · 74th
Student growth percentile, ELA · Math (50 = typical growth)48 · 60
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.