Summary:
The Benjamin Banneker Charter Public (District) in Cambridge, Massachusetts contains exactly one school — Benjamin Banneker Charter Public School — an elementary charter school serving grades PK–6 with 352 students, which means the district's results and the school's results are one and the same.
For parents comparing options, the academic numbers are remarkable. On MCAS Next Generation tests in 2025–2026, 81.01% of students were proficient in ELA, 87.15% in mathematics, and 80.00% in science, while statewide averages sat near 40% in each subject — roughly double the state in every case. Grade-level results tell the same story: 3rd-grade mathematics reached 97.87%, and the lowest reported score, 4th-grade ELA at 71.11%, was still 33.68 percentage points above the state's 37.43%. Year over year, ELA rose 1.75 points and mathematics 3.11 points, but science made the biggest jump, climbing 12.00 points from 68.00% to 80.00% while state science actually slipped slightly. Mathematics is the standout subject across grades 3 through 6.
The school's statewide standing reflects this performance. It ranked 3rd out of 899 Massachusetts schools in 2025–2026, up from 13th out of 906 the prior year and 12th out of 916 the year before, holding 5 stars and a 99th–100th percentile position throughout. The district itself is ranked 1st out of 351 in the state. Context is limited in a few ways: the student-teacher ratio is 18.5, per-student spending of $24,797 dates to 2020–2021, and the free/reduced-lunch percentage is blank in the available data, so it is unknown rather than zero. Even so, this is a consistently top-ranked, exceptionally high-performing elementary charter school.
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