Very Good
#541 of 1,791 schools in MA
Top 30% in state
King Open
Elementary School · Cambridge
850 Cambridge Street, Cambridge, MA 02139
Enrollment
387
Student-Teacher
9.4:1
Score
7.1
Grades
Pre-K – 5th
Enrollment
387
Student-Teacher
9.4:1
Score
7.1
Grades
Pre-K – 5th
Updated
2022-23
Updated 2022-23
How this school compares
In Cambridge
#15 of 20
public schools
Massachusetts elementary schools
#331 of 1,022
In district
#13 of 17
Cambridge
School environment
9.8 / 10
Exceptional
About King Open
King Open is an alternative elementary school located in Cambridge, Massachusetts. Serving students from pre-kindergarten through fifth grade, King Open has a total enrollment of 387 students and maintains a student-teacher ratio of 9.4:1 with 41 full-time equivalent teachers. As an alternative school, it offers unique educational approaches that set it apart from traditional public schools.
King Open's MySchoolScout rating is 5.5 out of 10, placing it in the 53rd percentile among Massachusetts schools. Its academic performance scores indicate areas where there’s room for growth: 46% of students are proficient or above in English Language Arts and Reading, while 39% are proficient or above in Math, and 36% in Science. The school focuses on student development and supports a diverse range of learners.
King Open is situated in the heart of Cambridge, a vibrant mid-size city known for its rich cultural scene and academic institutions. While specific neighborhood details aren't available, King Open benefits from being part of this dynamic community, offering students access to a wide array of resources and activities beyond the school walls.
What Parents Should Know
With a student-teacher ratio of 9.4:1, King Open offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
Data not available for this school
View breakdown
King Open — Students at King Open score 34% proficient, which is below what's typical for similar communities (expected: 44%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
0.1%
Students qualifying for federal meal assistance
Test Scores MA MCAS (2024-25)
Based on 60 test records from MA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.2/10.
How King Open Compares
See how King Open performs across key quality dimensions compared to state benchmarks.
Performance Trends
Math proficiency has declined from 42% (2019) to 32% (2022). Reading/ELA proficiency has declined from 57% (2019) to 37% (2022).
Location
850 Cambridge Street, Cambridge, MA 02139
Nearby Alternatives
Families considering King Open may also want to explore other elementary schools in the area. Martin Luther King Jr. (rated 9.9/10, 1.2 miles away), which scores notably higher. Another option is John M Tobin (rated 9.2/10, 0.6 miles away), which scores notably higher. Additionally, Cambridgeport (rated 9.1/10, 0.4 miles away), which scores notably higher. For more schools in Cambridge, see our Cambridge schools guide .
Nearby Schools
20 within 1.5 mi| School | Distance | Rating |
|---|---|---|
| Cambridge Street Upper School Cambridge | 0.0 mi | 7.9 |
| Kennedy-Longfellow Cambridge | 0.3 mi | 6.5 |
| Vassal Lane Upper School Cambridge | 0.3 mi | 5.4 |
| Cambridgeport Cambridge | 0.4 mi | 9.1 |
| Fletcher/Maynard Academy Cambridge | 0.4 mi | 5.4 |
| Community Charter School of Cambridge Cambridge | 0.5 mi | 7.8 |
| Albert F. Argenziano School at Lincoln Park Somerville | 0.6 mi | 6.7 |
| Prospect Hill Academy Charter School Cambridge | 0.6 mi | 5.4 |
| Capuano Early Childhood Center Somerville | 0.8 mi | 7.6 |
| John M Tobin Cambridge | 0.6 mi | 9.2 |
| E Somerville Community Somerville | 1.0 mi | 4.6 |
| Somerville High Somerville | 1.0 mi | 7.9 |
| Next Wave Junior High Somerville | 1.0 mi | — |
| Full Circle High School Somerville | 1.0 mi | 6.0 |
| Amigos School Cambridge | 1.1 mi | 9.0 |
| Cambridge Rindge and Latin Cambridge | 1.1 mi | 9.0 |
| Winter Hill Community Somerville | 1.4 mi | 5.0 |
| Putnam Avenue Upper School Cambridge | 1.1 mi | 8.7 |
| Martin Luther King Jr. Cambridge | 1.2 mi | 9.9 |
| THE NEWMAN SCHOOL Boston | 1.5 mi | 8.6 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 02139 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$124,648
Median Home Value
$1,066,200
Median Rent
$2,613/mo
Population
39,609
College Educated
77.6%
Homeownership
32%
Avg Commute
24.7 min
Poverty Rate
13.2%
Median Age
29.9
Community Profile
The community surrounding King Open has a median household income of $124,648. It is a well-educated community where 78% of adults hold a bachelor's degree or higher. The median home value in the area is $1,066,200, with a median rent of $2,613/month. The area has a poverty rate of 13.2%. The average commute for residents is 25 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Bentley Academy Innovation School Salem, MA | 7.1 |
| Craneville Dalton, MA | 7.1 |
| Indian Head Hanson, MA | 7.1 |
| Joseph R Dawe Jr Elementary Stoughton, MA | 7.1 |
| QUINCY CATHOLIC ACADEMY Quincy, MA | 7.1 |
| Raymond E. Shaw Elementary Millbury, MA | 7.1 |
Frequently Asked Questions
Common questions about King Open
What grades does King Open serve?
King Open serves students in grades Pre-K through 5th.
How many students attend King Open?
King Open has an enrollment of approximately 387 students.
What is the student-teacher ratio at King Open?
The student-teacher ratio at King Open is 9.4:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does King Open rank in MA?
King Open is ranked #541 out of 1,791 schools in MA.
What is King Open's MySchoolScout rating?
King Open has a composite rating of 7.1 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at King Open?
Based on the most recent state assessment data, King Open has 39.2% math proficiency and 47.2% reading/ELA proficiency.
Is King Open a charter school?
No, King Open is not a charter school. It is a traditional public school operated by the local school district.
Is King Open a Title I school?
No, King Open is not currently a Title I school.
Neighborhood Context
- City Safety
- High (3,093/100K)
FBI UCR 2024. City-level (Cambridge). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Pre-K – 5th
- Enrollment
- 387
- Student-Teacher Ratio
- 9.4:1
- Teachers (FTE)
- 41
- Type
- alternative
- Setting
- Midsize City
- County
- Middlesex County
- Phone
- (617) 349-6540
- Data Year
- 2023–2024
Resources & Links
District
Cambridge- District Enrollment
- 6,915
- Schools in District
- 17
- Per-Pupil Spending
- $40,666
- District Rank
- #13 of 17
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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