Summary:
Rio Dell, California, has two schools serving kindergarten through grade 8: Eagle Prairie Elementary serves K–5, and Monument Middle serves grades 6–8. In 2025–2026, the two-school average was below California’s in all three subjects: 37% in English language arts (ELA) versus 49% statewide, 26% in math versus 38%, and 16% in science versus 36%. Science had the largest gap, at 20 percentage points below the state. The most important area-wide finding is that average results fell from the prior year even as state results rose.
Eagle Prairie led the pair in every subject, while Monument Middle was substantially lower. Eagle Prairie posted 48% in ELA, 42% in math, and 21% in science; it was close to the state in ELA, 3 points above in math, and 15 points below in science. Monument’s results were 26% in ELA, 10% in math, and 10% in science—24, 28, and 26 points below the state, respectively. The schools’ largest difference was in math: 32 points. Grade-level results show a stronger pattern for Eagle Prairie in grades 4–5 than grade 3, while Monument was below state results in each grade from 6 to 8.
Results declined at Eagle Prairie between 2024–2025 and 2025–2026 by 18 points in ELA, 18 in math, and 20 in science. Monument’s ELA improved by 8 points, but math fell 9 points and science fell 7. Across both schools, math shifted from 2 points above the state average to 12 points below; the science gap widened from 3 to 20 points. SchoolDigger lists Eagle Prairie at the 55th percentile and 3 stars, down from the 76th percentile the year before; Monument is at the 8th percentile and 0 stars. Their 2024–2025 free/reduced lunch eligible rates were similar—64% at Eagle Prairie and 66% at Monument—and student-teacher ratios were 18.2 and 18.3. These are useful context, but the figures do not explain why achievement differs.
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