Summary:
ZIP code 42029 has two schools in North Marshall Middle School (grades 6–8) and Calvert City Elementary School (PK–5), both in Marshall County. Their grade spans do not overlap, so the most useful comparison is how each school performs against state results for its own grades. The clearest finding is that North Marshall was above the state in every reported 2025–26 result, while Calvert City’s results were mixed and more often below.
North Marshall stands out on the latest state comparisons: all 10 reported grade-and-subject results were above the state, with advantages of 1 to 21 percentage points. Its largest lead was grade 8 writing, at 69% compared with 48%. Calvert City had two results equal to the state, one above, and six below among the nine that could be compared; its largest shortfalls were 6 points in grade 5 social studies and editing and mechanics. Its strongest result was grade 4 math, 7 points above the state. Calvert City’s grade 5 writing result is suppressed.
Recent results show different patterns: North Marshall’s average advantage over the state across its 10 results narrowed from about 13 percentage points in 2024–25 to 10 in 2025–26, while Calvert City’s average gap shifted from near the state level to about 2 points below. SchoolDigger’s statewide percentile rankings also moved in opposite directions: North Marshall went from 86 in 2023–24 to 79 in 2025–26, while Calvert City rose from 25 to 45. Their 2024–25 student-teacher ratios were similar, at 16.4 and 16.7. Both report free/reduced lunch eligible measures for 2024–25: 52% at North Marshall and 71% at Calvert City. These figures provide context, not an explanation for the schools’ differing results; because the schools serve different grades, their test scores are not a direct school-to-school comparison.
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