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Ontario High School

467 Shelby Ontario Rd, Mansfield, OH 44906

ASchola Grade
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Grades
9–12
High
Students
540
Enrolled 2024–25
Students per teacher
18.2 : 1
Full-time teachers
District
Ontario Local
Richland County

Schola Grade A · Excellent

Letter grade (A–F) · compared with 824 Ohio high schools · How we grade
Test scores70% proficient in math & reading
81stpercentile
Equity64% of low-income students proficient
95thpercentile
Attendance13% chronically absent
91stpercentile
Graduation rate98% graduate in 4 years
87thpercentile
College readinessAt least 11% take AP, IB or dual-enrollment courses
46thpercentile
Class size18.2 students per teacher
32ndpercentile

Percentiles compare this school with other Ohio high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Ontario High School

Ontario High School is a public high school in Mansfield, Ohio, serving grades 9–12. It is part of Ontario Local. The school is located in a rural area near a town in Richland County.

In the 2024–25 school year, 540 students were enrolled, with about 18.2 students for every full-time teacher. That ratio is larger than the typical Ohio high school (15.5 students per teacher). Its Schola Grade is A (excellent), compared with 824 Ohio high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

467 Shelby Ontario Rd
Mansfield, OH 44906
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School details

Type
Public School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
540 students
Students per teacher
18.2 to 1
Charter school
No
Magnet school
No
Locale
Rural — Fringe
School district
Ontario Local
County
Richland County
NCES school ID
390494703608

Schools near Ontario High School

All 26 schools in Mansfield →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.