C+
King Open
PublicElementaryGrades PK–5Alternative Education School
850 Cambridge Street, Cambridge, MA 02139 · (617) 349-6540 · Part of Cambridge School District
Students
391
Students per teacher
10:1
Setting
City
Grades
PK–5
What stands out about King Open
- Math proficiency 10 pts below the state
- Small classes: 10:1 students per teacher
- Enrollment up 9.2% since 2020
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency27%
State average 36.7%
Reading / language arts52%
State average 49.3%
Location
Directions ↗
850 Cambridge Street, Cambridge
Students
Enrollment by grade
Pre-K28
Kindergarten66
Grade 163
Grade 267
Grade 363
Grade 454
Grade 550
Enrollment over time
358’20
355’21
371’22
387’23
391’24
Up 9.2% since 2020.
Who goes here
White 33%Black 24%Hispanic 17%Two or more races 15%Asian 11%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention King Open.
Other schools in Cambridge School District
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.