Summary:
Zip code 08510 has two elementary schools in Millstone Township School District: Millstone Township Primary School, serving PK–2 with 395 students, and Millstone Township Elementary School, serving grades 3–5 with 329 students. The clearest achievement finding is that the only school with reported test results, Millstone Township Elementary, scored above the state in every supplied subject, grade, and year comparison.
Millstone Township Elementary’s strongest 2025–2026 result was fourth-grade math: 72% proficient versus 47% statewide, a 25-point advantage. Its lowest score was fifth-grade science at 35%, still 8 points above the state’s 27%. The school’s smallest lead was in third-grade ELA: 48.4% versus 48.1%, a 0.3-point difference. There is no school-to-school test-score leader or trailing school to identify: the Primary school serves younger grades and has no test scores supplied.
Results changed unevenly over time. ELA proficiency fell in all three grades from 2024–2025 to 2025–2026, by about 11 to 15 points; math rose by 1 point in grade 3 and 4 points in grade 4, but fell 12 points in grade 5, while fifth-grade science declined 5 points. Across the seven supplied comparisons, the school’s average fell from 64% to 57%, narrowing its average advantage over the state from 18 to 12 points. SchoolDigger’s rating also moved from 4 stars to 3, and its percentile from 78 to 67. As context, in 2024–2025 the Primary school had a 10.7 student-teacher ratio and 8% free/reduced lunch eligible, compared with 9.8 and 10% at the Elementary school; these figures describe the schools but do not establish a performance pattern.
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