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Massachusetts public elementary school

King Open Elementary

Cambridge school district

B-
overall grade

Ranks #401 of 895 Massachusetts elementary schools — top 45%.

Overall rank
#401
of 895 schools
ELA · 2024–2026
57%+15 vs MA
MA average 42%
Math · 2024–2026
47%
MA average 43%
Avg class size
15
387 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 25% statewide. An average of 57% of 3rd graders met or exceeded expectations over 2024–2026, vs 42% statewide.
  • Area to watch: Teacher quality ranks in the bottom 12% statewide.
  • Trend: ELA is up 23 points since 2023 (39% to 62%).
  • Trend: Chronic absence has fallen from 29.2% in 2022 to 15.9% in 2025.
Where it stands among 895 Massachusetts elementary schools
Bottom of MATop of MA
Overall
Averagetop 45% · #401
ELA
Above averagetop 25% · #221
Math
Averagetop 45% · #399
Attendance
Averagebottom 50% · #449
Teacher quality
Below averagebottom 12% · #791

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 4 of 8 years since 2018. Math has been above the state average in 3 of 8 years since 2018.

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

English Language Arts62%in 2026 · state 43%
19 points above the state
0%50%100%This school62%State43%20172019202120232026
Math46%in 2026 · state 42%
4 points above the state
0%50%100%This school46%State42%20172019202120232026
Detailed scores
Average scaled score, ELA (500+ = meeting expectations)504
Average scaled score, Math (500+ = meeting expectations)497
Achievement percentile vs. MA schools (ELA · Math)77th · 53rd

Students & classrooms

Classrooms
Students387
Average class size15MA avg 18
Students per teacher10.4MA avg 12.1
Who attends
White
32.3%
Black/African American
24%
Hispanic/Latino
18.1%
Multi-Race
14.5%
Asian
11.1%

47% girls · 53% boys

Student needs
Low incomeAbout average
This school
40.3%
MA avg
42.8%
English learnersLower than average
This school
10.9%
MA avg
17.2%
Students with disabilitiesHigher than average
This school
27.9%
MA avg
22.3%

Teachers

Licensed teachersAbout average
This school
95.5%
MA avg
98.4%
Experienced teachersWorse than average
This school
57.6%
MA avg
73.2%
Teaching in their fieldAbout average
This school
88.1%
MA avg
92.4%
Stayed from last yearAbout average
This school
81.4%
MA avg
82.7%
More staffing details
Teachers (full-time equivalent)37.4
Principal retention100%
General education teachers75%
Special education teachers8%
English learner teachers17%

Attendance & safety

Attendance rateAbout average
This school
94.4%
MA avg
94.1%
Chronically absentmissed 10%+ of daysAbout average
This school
15.9%
MA avg
15.6%

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

About Cambridge

Middlesex County · Greater Boston — Inside I-95
Avg single-family home value$2.05MMA median $588K
Avg property tax bill$13,680MA median $6,814
Tax rate$6.70 per $1,000MA median $12.40
Income per person$87,857MA median $47,872
Local kids in public school83.7%
Town bond ratingAAA
Free cash reserves17.1% of budget

Cambridge 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.

Other schools in Cambridge

See all 11 Cambridge elementary schools →

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