Summary:
Middle schools in ZIP code 57445 consist of one school, Groton Area Middle School - 04, which serves grades 6–8 in the Groton Area School District 06-6. In 2025–2026, the school’s all-grade proficiency was 58% in ELA and 52% in mathematics, above state results of 49% and 44%, respectively, but below district results of 63% and 59%. The clearest overall takeaway is that the school performs above the state but below its district in both subjects.
Results stand out most positively in seventh-grade ELA and sixth-grade mathematics, each 19 percentage points above the state; seventh-grade mathematics is 8 points above, and sixth-grade ELA is 1 point above. Eighth grade is the weaker spot: ELA is 2 points below the state and mathematics is 3 points below, while eighth-grade science is 7 points above. With only one school listed, there is no within-ZIP school leader or trailer. SchoolDigger gives the school four stars and a 73rd-percentile ranking (41 of 151); its supplied district ranking is 95th percentile with five stars, a separate measure from test proficiency.
All-grade ELA and mathematics improved from 2024–2025 to 2025–2026, and the school’s advantage over the state widened in both: ELA rose 1 point as the state fell 2 points, while mathematics rose 4 points and the state rose less than 1 point. Eighth-grade science went the other way, falling 8 points at the school versus 2 points statewide, narrowing its state advantage by 5 points. Chronic absenteeism is lower at the school—7%, compared with 14% districtwide and 20% statewide. Other context measures include a 12.9 student-teacher ratio in 2024–2025 and 19% free/reduced lunch eligible in 2024–2025.
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