Summary:
Zip code 73448 has one listed middle school, Marietta Middle School, serving grades 6–8 and 241 students. In 2025–2026, its strongest all-grades result was science, with 40% proficient compared with 30% statewide; math was its biggest concern, at 10% compared with 25% statewide. The clearest overall takeaway is that science is now a strength, while mathematics remains well below the state result.
Marietta Middle School is the only school in the list, so it is both the highest- and lowest-scoring listed school, with no local school-to-school comparison. Against the state in 2025–2026, Marietta was 10 percentage points ahead in science, 6 points behind in English Language Arts I (20% versus 26%), and 15 points behind in math. Grade results show meaningful differences within the school: English was 1 point above the state in grade 6 and 2 points above in grade 7, but 10 points below in grade 8. Math was below the state in all three grades: 15% versus 26% in grade 6, 13% versus 26% in grade 7, and 3% versus 17% in grade 8. Eighth-grade science was above the state, 40% versus 36%.
Results improved across all three subjects from 2024–2025 to 2025–2026, with the largest gain in science: proficiency rose 17 points, from 23% to 40%; English rose 6 points, from 14% to 20%; and math rose 3 points, from 7% to 10%. SchoolDigger placed Marietta at the 34th percentile in 2025–2026, up from the 14th percentile the year before; its reported rank improved from 316 of 369 to 249 of 378. The school reported a 20:1 student-teacher ratio and 84% free/reduced lunch eligible in 2024–2025. Chronic absenteeism in 2025–2026 was 2% at Marietta, compared with 3% in the Marietta district and 16% statewide. These figures describe the school, but the list includes no other local school for comparison.
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