Summary:
Marissa CUSD 40 has two schools: Marissa Elementary School, serving PK–6, and Marissa Junior & Senior High School, serving grades 7–12. The clearest shared academic concern is mathematics: in 2025–2026, all-grades proficiency was 24% at the elementary school and 27% at the high school, compared with 40% statewide. Both schools were well below the state in math, by 15 and 13 percentage points, respectively—the most important finding across the area’s reported results.
ELA results distinguish the schools more sharply: the high school had the stronger all-grades result, at 60% proficient, while the elementary school had 45%; the state figure was 56%. The high school was 4 points above the state, while the elementary school was 12 points below. In math, the high school’s 27% was only 3 points higher than the elementary school’s 24%, and both were below the state. Grade results also vary: elementary grade 3 ELA was 5 points above the state, but grade 5 ELA was 22 points below. High-school grade 8 ELA and science were 12 and 14 points above state results, while 11th-grade ACT ELA and science were 19 points below.
Recent results show math rising at both schools, but ELA moving in different directions. From 2024–2025 to 2025–2026, math increased by 4 points at each school; elementary ELA rose by 10 points, while high-school ELA fell by 6. SchoolDigger gives both schools 2 stars; its 2025–2026 rankings place the elementary school 1,109 of 1,737 schools (36th percentile) and the high school 420 of 620 (32nd percentile). In 2024–2025, student–teacher ratios were 11.5 at the elementary school and 9.8 at the high school. For that school year, 58% of elementary students and 60% of high-school students were free/reduced lunch eligible, a 2-point difference. These context measures do not explain the different score patterns.
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