Summary
Tri-Valley High School is a public school in Dresden, Ohio, serving grades 8–12 with 730 students as part of Tri-Valley Local. In 2025–2026, it ranked 247 of 795 statewide (69th percentile, 3 stars), while the district ranked 184 of 773 (76th percentile, 4 stars). It has improved from around the 48th–54th percentile in 2017–2018 through 2021–2022 to the 60th–74th percentile recently, peaking at 225 of 864 (74th percentile, 4 stars) in 2023–2024. Graduation is strong at 97.3% in 2025–2026, and chronic absenteeism improved from 30.4% in 2021–2022 to 14.6% in 2025–2026. The student-teacher ratio was 20.8.
Academically, the school is above Ohio in five of six common End-of-Course subjects: 77.7% in American Government, 88.2% in American History, 83.3% in Biology, 84.4% in English II, 67.0% in Algebra I, and 39.7% in Geometry. English II is a standout, 21.7 points above the state. Geometry is the clearest weakness, below the state’s 43.3%, and Algebra I has declined from 75.3% in 2023–2024 to 67.0%. Compared with nearby comprehensive high schools, the school’s average End-of-Course proficiency is highest at 73.4%, ahead of Licking Valley High School (66.6%), River View High School (65.2%), Coshocton High School (63.0%), West Muskingum High School (60.5%), and Zanesville High School (52.1%). Its 14.6% chronic absenteeism is far better than those schools, which range from 20.6% to 37.6%; only Coshocton Opportunity School is similar at 14.5%, but it is an alternative school.
Class sizes are comparatively large and spending relatively low: the student-teacher ratio of 20.8 is high compared with nearby comprehensive high schools, and 2018–2019 per-student spending of $8,685 was lower than most nearby schools. Subgroup results show a gender gap—female students ranked in the 74th percentile, male students in the 59th—and low-SES students in the 61st. The biggest equity concern is special education: that subgroup ranked in the 12th percentile in each of the last two years, down from the 36th percentile in 2023–2024. Overall, the school is a high-performing, improving regional school with strong attendance, graduation, and test results, but Geometry, Algebra I’s recent decline, class size, and the special education gap are areas to monitor.
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