Summary:
Seven elementary schools in ZIP code 08865 serve students from pre-K through grade 8, but only five report test scores: Phillipsburg Elementary School, Lopatcong Elementary School, Pohatcong Township School, Alpha Borough School and Harmony Township School. The two schools without scores are Phillipsburg Early Childhood Learning Center and Philipsburg Primary School. Results vary considerably by grade and subject, and the clearest overall finding is that the area’s average grade 3–5 scores remain below state averages in both ELA and math.
Lopatcong stands out in grades 3 and 4: it led listed schools in grade 3 ELA and math, at 52% and 61%, and grade 4 ELA, at 46%. Its grade 3–4 averages were above the state in both ELA and math. Pohatcong led grade 4 math with 59%, 13 percentage points above the state. Harmony led grade 5 ELA at 56% and grade 8 science at 50%, the latter 31 points above the state; Alpha led grade 5 science at 35%. At the lower end, Phillipsburg Elementary had the lowest listed grade 3 and 4 ELA and math scores; its grade 4 math result was 21%, 25 points below the state.
Recent changes are mixed: the average grade 3–5 ELA score rose from 35% in 2024–25 to 39% in 2025–26, narrowing the gap with the state from 15 to 10 points, while math slipped from 40% to 39% and its gap widened from 7 to 9 points. SchoolDigger’s statewide ranking percentile rose from 35 to 53 for Lopatcong over three years, while Phillipsburg Elementary moved from 21 to 22; these are rankings, not test scores. The 2024–25 free/reduced lunch eligible measure ranged from 17% at Lopatcong to 77% at Phillipsburg Elementary, but schools with similar measures show different grade-specific strengths. Harmony had the lowest student–teacher ratio, 7.8, compared with Lopatcong’s 11.7, yet results vary by subject at both schools. The two schools without test scores also have attendance concerns: chronic absenteeism was 41% at the Early Childhood Learning Center, versus 14% statewide.
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