Summary:
ZIP code 02139 in Cambridge, Massachusetts is served by eight schools — six elementary, one middle, and one PK–12 charter — enrolling 3,157 students combined, with no district high school located inside the ZIP. Seven of the eight belong to the Cambridge district (ranked 71st of 351 statewide, 80th percentile), while Prospect Hill Academy Charter School operates as its own single-school district.
Amigos School is the top performer, ranked 94th of 899 (90th percentile) with All-Grades ELA of 70.4, Math 68.4, and Science 56.1 — roughly 30 points above the state in ELA. Martin Luther King Junior still ranks 87th percentile but fell from 98th–99th percentile in the two prior years, with ELA down 13.9 points and Science down 36.9. Morse is the steadiest, improving three years running (80 → 83 → 87 percentile) and posting the ZIP's highest Science score (65.31). King Open (ELA +6.3) and Fletcher/Maynard Academy (Math +8.1, Science +13.9) made the largest gains, though both still sit below the district average.
Spending runs backward to results here: Fletcher/Maynard spends the most ($40,576 per pupil) with the smallest classes (7.3 student-teacher ratio) yet ranks lowest of the seven Cambridge schools, while Amigos spends $29,062 with the largest classes (10.9). Putnam Avenue Upper School shows the widest internal gap, with Math (51.5) trailing its own ELA by 12.5 points. Cambridgeport was the quiet decliner, slipping in all three subjects year over year. Prospect Hill Academy Charter School, the ZIP's largest school at 890 students, is the only one below the state in all three subjects, despite a reported 93.2% graduation rate and 3.4% dropout rate. Overall, six of eight schools beat the state in ELA and seven of eight in Math and Science — ZIP 02139 is a high-performing area whose biggest stories are movement, not level.
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