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Benjamin Banneker Charter Public School vs Martin Luther King Jr.

Martin Luther King Jr. has a higher overall rating of 9.8/10 compared to 9.1/10. In math proficiency, Benjamin Banneker Charter Public School leads at 42.0%.

Ratings Comparison

MetricBenjamin Banneker Charter Public SchoolMartin Luther King Jr.
Overall Rating9.1 / 109.8 / 10
Academic Score9.99.9
Growth Score9.99.8
Diversity Index
Free/Reduced Lunch0.1%0.1%
Environment Score5.79.8
State Rank#74 of 1,793#5 of 1,793
State Percentile96th100th

Test Scores

SubjectBenjamin Banneker Charter Public SchoolMartin Luther King Jr.
Math Proficiency42.0%37.0%
Math (State Avg)
ELA Proficiency47.0%52.0%
ELA (State Avg)

School Details

DetailBenjamin Banneker Charter Public SchoolMartin Luther King Jr.
TypeElementary SchoolElementary School
GradesPre-K – 6thPre-K – 5th
Enrollment346328
Student-Teacher Ratio16.5:110.9:1
Free/Reduced Lunch
Chronic Absenteeism (SY 2022-23)12.4%15.2%
DistrictBenjamin Banneker Charter Public (District)Cambridge
CityCambridgeCambridge

Neighborhood

MetricCambridge (02140)Cambridge (02139)
Median Household Income$136,382$124,648
Median Home Value$1,070,200$1,066,200
Median Rent$2,581$2,613
College Educated (Bachelor's+)78.6%77.6%
Poverty Rate10.8%13.2%
Avg Commute31 min25 min

The data story: Benjamin Banneker Charter Public School vs Martin Luther King Jr.

Martin Luther King Jr. School holds the stronger overall rating at 9.9 out of 10, compared to Benjamin Banneker Charter Public School's 8.7 out of 10 — a 1.2-point gap. That gap reflects a remarkable state rank: Martin Luther King Jr. sits at #2 of 1,791 schools in Massachusetts, while Benjamin Banneker Charter Public School ranks #89 of 1,791. Both are elite performers statewide, but MLK's rank places it among the rarest schools in the Commonwealth.

Academically, the two schools are nearly identical. Benjamin Banneker Charter Public School scores 9.7 out of 10 on academics versus Martin Luther King Jr.'s 9.8 — a one-tenth difference that is negligible in practice. Growth scores are identical: both schools earn 9.9 out of 10, meaning students at each school make exceptional learning progress relative to peers. Parents choosing on test outcomes or growth trajectory will find no meaningful separation here.

The clearest structural difference is classroom density. Martin Luther King Jr. carries a student-teacher ratio of 10.9:1 versus Benjamin Banneker Charter Public School's 16.5:1 — roughly five fewer students per teacher. Enrollment is similar overall, with Benjamin Banneker serving 346 students and Martin Luther King Jr. 328. The ratio gap, however, translates directly to more individualized attention in MLK classrooms.

Benjamin Banneker is a charter school serving grades PK through 6, meaning students can stay through sixth grade before transitioning to middle school. Martin Luther King Jr. is a regular Cambridge public school serving grades PK through 5, so families there face an earlier middle school transition one year sooner. The charter model at Banneker also involves an enrollment application process not required for MLK. The two schools sit 2.0 miles apart within Cambridge, making geography a secondary factor for most families compared to these structural and rating differences.

Editorial summary generated April 2026 · sonnet

Who each school fits

Benjamin Banneker Charter Public School

Benjamin Banneker Charter Public School suits families who want a charter environment with an extended elementary track through sixth grade, buying one extra year before the middle school transition. With a 9.9 growth score and a top-90 state rank, it's a strong academic choice for families who prioritize a smaller charter community and are prepared to navigate the application process.

Martin Luther King Jr.

Martin Luther King Jr. suits families who want the highest-rated elementary school in Cambridge without an application process. The 10.9:1 student-teacher ratio makes it the better fit for children who benefit from close teacher attention, and its #2 state rank means no trade-off in academic outcomes for choosing the neighborhood public school path.

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