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Massachusetts public elementary school

Riverdale Elementary

Dedham school district

B-
overall grade

Ranks #379 of 895 Massachusetts elementary schools — top 43%.

Overall rank
#379
of 895 schools
ELA · 2024–2026
56%+14 vs MA
MA average 42%
Math · 2024–2026
51%
MA average 43%
Avg class size
19
204 students

ELA and Math show the share of 3rd graders meeting or exceeding expectations on the MCAS, averaged over 2024–2026.

How it compares

What stands out
  • Strongest area: ELA, in the top 27% statewide. An average of 56% of 3rd graders met or exceeded expectations over 2024–2026, vs 42% statewide.
  • Area to watch: Teacher quality ranks in the bottom 21% statewide.
  • Trend: Math is up 26 points since 2023 (38% to 64%).
  • Trend: ELA is up 19 points since 2023 (48% to 67%).
Where it stands among 895 Massachusetts elementary schools
Bottom of MATop of MA
Overall
Averagetop 43% · #379
ELA
Above averagetop 27% · #241
Math
Averagetop 39% · #349
Attendance
Averagebottom 45% · #501
Teacher quality
Below averagebottom 21% · #716

MCAS standings use the 2024–2026 average of grade 3 results, so one unusual year doesn't swing a school's ranking. Scores in the sections below are from 2026.

Test scores

ELA has been above the state average in 6 of 8 years since 2018. Math has been above the state average in 4 of 8 years since 2018.

Share of 3rd graders meeting or exceeding expectations on the MCAS. There was no test in 2020.

English Language Arts67%in 2026 · state 43%
24 points above the state
0%50%100%This school67%State43%20172019202120232026
Math64%in 2026 · state 42%
22 points above the state
0%50%100%This school64%State42%20172019202120232026
Detailed scores
Average scaled score, ELA (500+ = meeting expectations)507
Average scaled score, Math (500+ = meeting expectations)506
Achievement percentile vs. MA schools (ELA · Math)85th · 78th

Students & classrooms

Classrooms
Students204
Average class size19MA avg 18
Students per teacher9.6MA avg 12.1
Who attends
White
63.7%
Hispanic/Latino
16.2%
Black/African American
11.3%
Multi-Race
6.9%
Asian
2%

53.4% girls · 46.6% boys

Student needs
Low incomeLower than average
This school
27.9%
MA avg
42.8%
English learnersLower than average
This school
12.3%
MA avg
17.2%
Students with disabilitiesHigher than average
This school
28.9%
MA avg
22.3%

Teachers

Licensed teachersAbout average
This school
100%
MA avg
98.4%
Experienced teachersWorse than average
This school
64.1%
MA avg
73.2%
Teaching in their fieldAbout average
This school
88%
MA avg
92.4%
Stayed from last yearBetter than average
This school
95.7%
MA avg
82.7%
More staffing details
Teachers (full-time equivalent)21.5
Principal retention100%
General education teachers62.7%
Special education teachers32.6%
English learner teachers4.7%

Attendance & safety

Attendance rateAbout average
This school
94.2%
MA avg
94.1%
Chronically absentmissed 10%+ of daysAbout average
This school
14.7%
MA avg
15.6%

10.3 days absent per student (MA avg 10.3) · Suspensions: Not reported

About Dedham

Norfolk County · Greater Boston — Inside I-95
Avg single-family home value$811KMA median $588K
Avg property tax bill$9,974MA median $6,814
Tax rate$12.30 per $1,000MA median $12.40
Income per person$72,174MA median $47,872
Local kids in public school84.3%
Town bond ratingAAA
Free cash reserves6.2% of budget

Dedham district profile · What could you afford here? · All towns A–Z

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.

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