Summary:
Mariposa County High, Spring Hill High (Continuation), and Coulterville High are the three high schools in Mariposa County Unified; all serve grades 9–12, and enrollment ranges from 7 to 461 students. The clearest difference in the available results is between the two schools with test scores: one leads the other in all three subjects.
Mariposa County High is the proficiency leader for 2025–2026, with 36% of students meeting the standard in English language arts (ELA), 27% in math, and 32% in science. Those results are 36, 19, and 32 percentage points above Spring Hill, respectively; Spring Hill’s results are 0% in ELA, 8% in math, and 0% in science. Both schools are below state results in every subject, although Mariposa County High is closer, especially in science: it is 4 points below the state, compared with Spring Hill’s 36-point gap. SchoolDigger ranks Mariposa County High 1,132nd of 2,137 schools, at the 47th percentile with 2 stars; Spring Hill ranks 1,980th, at the 7th percentile with 0 stars.
Results fell at both schools from 2024–2025 to 2025–2026 in all three subjects, while state results edged up in each. Mariposa County High’s ELA result dropped from 64% to 36%, a 28-point decline; its math and science results fell by 2 points each. Its strong 98% graduation rate is offset by chronic absenteeism of 37%, compared with 18% statewide. Spring Hill also has high chronic absenteeism, at 85%, and a 79% graduation rate. The schools have similar student-teacher ratios—16.3 at Mariposa County High and 16.5 at Spring Hill—while their free/reduced lunch eligible shares were 63% and 97%, respectively, in 2024–2025; these are context, not explanations for score differences. Coulterville has only 7 students, no supplied test scores, and SchoolDigger history from 2009–2012, so its current proficiency cannot be compared with the other schools.
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