Summary:
Sloughhouse has one listed school, Cosumnes River Elementary, serving 350 students in grades K–6. Its reported results cover English language arts (ELA), mathematics and science, and there are no other local schools to compare. The most important finding is that in 2025–2026, the school scored above both the state and Elk Grove Unified in all three subjects.
Because it is the only school in the list, Cosumnes River Elementary is both the area’s highest- and lowest-scoring school by default; there is no meaningful local ranking. Compared with the state in 2025–2026, its results were 72% in ELA versus 49% statewide, a lead of 22 points; 70% in math versus 38%, a 32-point lead; and 52% in science versus 36%, a 16-point lead. Math was its strongest subject relative to the state, while science was still above the state but by the smallest margin. Fifth grade was a particular high point: ELA was 83% versus 49% statewide, and math was 79% versus 37%, leads of 34 and 42 points.
Recent results improved most clearly in science: from 2024–2025 to 2025–2026, the school’s science score rose 10 points, while its lead over the state widened by 7 points. ELA edged down and math rose about a point; the school’s leads over the state narrowed slightly in both. SchoolDigger placed the school at the 88th percentile in 2025–2026, up from the 87th percentile in 2024–2025 and 86th in 2023–2024. Other context: the student–teacher ratio was 25:1 in 2024–2025, and 27% of students were free/reduced lunch eligible that year; statewide, all students receive free school meals. In 2025–2026, chronic absenteeism was 15%, below the district’s 22% and the state’s 18%. These figures describe one school and do not establish a cause for its results.
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