Summary:
Schools in ZIP code 74531 include two small schools: Calvin Elementary School, serving prekindergarten through eighth grade, and Calvin High School, serving grades nine through twelve. Results vary sharply by school and subject, with the clearest finding being a striking split in 2025–2026 mathematics: the elementary school was well above the state, while the high school was well below it.
Calvin Elementary stands out in mathematics, with 44% proficiency—19 percentage points above the state’s 25% and 38 points above the high school’s 6%. Calvin High had the weakest test results relative to the state: proficiency was 7 points lower in English Language Arts I, 19 points lower in mathematics, 24 lower in science, and 10 lower in U.S. History. The high school nevertheless stands out for graduation and attendance: its 2024–2025 graduation rate was 88%, compared with 78% statewide, and its 2025–2026 chronic absenteeism was 9%, versus 16% statewide.
Recent results show the elementary school’s mathematics improvement was not shared across the high school: elementary math rose from 25% to 44% between 2024–2025 and 2025–2026, while high-school math fell from 8% to 6%; elementary ELA I stayed at 25%, and the high school’s other reported subjects slipped slightly. SchoolDigger ranks the Calvin district 427th out of 450 statewide, in the 5th percentile, with 0 stars; its high-school ranking moved from 397th of 463 to 410th of 462. In 2024–2025, student–teacher ratios were 10.1 at the elementary school and 9.3 at the high school. Free/reduced lunch eligible shares that year were 77% and 91%, respectively; these are context measures, not explanations for test results. Because the schools serve different grade spans, their all-grades results are not a like-for-like comparison.
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