Summary:
[Placerville Union Elementary](https://www.schooldigger.com/go/CA/district/30780/search.aspx) includes three schools serving kindergarten through grade 8: two K–5 elementary schools and one grades 6–8 middle school, with enrollments from 370 to 431. In 2025–26, the schools’ equal-weighted average proficiency was below the state in all three subjects: 41% in ELA versus 49%, 32% in math versus 38%, and 33% in science versus 36%. The clearest distinction for families comparing the two elementary schools is the wide gap between them: [Sierra Elementary](https://www.schooldigger.com/go/CA/schools/3078004787/school.aspx) outperformed [Louisiana Schnell Elementary](https://www.schooldigger.com/go/CA/schools/3078004786/school.aspx) by 35 percentage points in ELA, 27 in math, and 22 in science.
[Sierra Elementary](https://www.schooldigger.com/go/CA/schools/3078004787/school.aspx) stands out for ELA and math, with 59% and 46% proficiency—10 and 8 percentage points above the state. [Edwin Markham Middle](https://www.schooldigger.com/go/CA/schools/3078004785/school.aspx) leads in science at 42%, 6 points above the state, though its ELA and math results are 8 and 8 points below. [Louisiana Schnell Elementary](https://www.schooldigger.com/go/CA/schools/3078004786/school.aspx) is lowest in all three subjects, at 24% in ELA, 19% in math, and 17% in science. SchoolDigger’s statewide ranking percentiles also place Sierra highest at 69, Edwin Markham at 51, and Louisiana Schnell at 12. Grade-level results add nuance: Sierra’s grade 5 math proficiency is 27%, below the state’s 37%, while Edwin Markham’s grade 8 math is 42%, above the state’s 36%.
Group averages did not keep pace with state results from 2024–25 to 2025–26: the ELA gap widened from 5 to 8 percentage points, and the science gap from less than 1 to 3 points; the math gap also widened from 6 to 6 points. Individual results varied: Edwin Markham’s science rose 8 points, while Sierra’s fell 7; these school-level changes do not show a shared upward trend. Context differs, too: in 2024–25, free/reduced lunch eligible figures were 51% at Sierra, 70% at Louisiana Schnell, and 63% at Edwin Markham. Student-teacher ratios were 23.6:1, 23.1:1, and 22.3:1, respectively. These are comparisons, not explanations of achievement, and the schools serve different grade spans.
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