St. Charles High School is a 9???2 public high school in St. Charles, Missouri, United States. The other high school in St. Charles, MO is St. Charles West High School.
Serving 782 students in grades 9-12, St. Charles High School ranks in the top 20% of all schools in Missouri for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 54% (which is higher than the Missouri state average of 40%). The percentage of students achieving proficiency in reading/language arts is 60-64% (which is higher than the Missouri state average of 43%).
The student-teacher ratio of 11:1 is lower than the Missouri state level of 12:1.
Minority enrollment is 30% of the student body (majority Black and Hispanic), which is lower than the Missouri state average of 33% (majority Black and Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 782 students
- Student-Teacher Ratio: 11:1
- Minority Enrollment: 30%
- Graduation Rate: 88% (Btm 50% in MO)
- Overall Testing Rank: Top 20%
- Math Proficiency: 54% (Top 20%)
- Reading Proficiency: 60-64% (Top 10%)
- Science Proficiency: 50-54% (Top 20%)
- Source: National Center for Education Statistics (NCES), MO Dept. of Education
Top Rankings
St. Charles High School ranks among the top 20% of public schools in Missouri for:
Category
Attribute
Overall Rank
Most improved public schools
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
St. Charles High School's student population of 782 students has stayed relatively flat over five school years.
The teacher population of 74 teachers has grown by 8% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
782 students
Total Classroom Teachers
74 teachers
Year Founded
1899
School Rankings
St. Charles High School ranks within the top 20% of all 2,076 schools in Missouri (based off of combined math and reading proficiency testing data).
The diversity score of St. Charles High School is 0.48, which is less than the diversity score at state average of 0.52. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#257 out of 2076 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
54%
40%
Reading/Language Arts Test Scores (% Proficient)
60-64%
43%
Science Test Scores (% Proficient)
50-54%
38%
Student-Teacher Ratio
11:1
12:1
American Indian
n/a
n/a
Asian
1%
2%
Hispanic
14%
9%
Black
14%
15%
White
70%
67%
Hawaiian
n/a
1%
Two or more races
1%
6%
All Ethnic Groups
Graduation Rate
88%
90%
Eligible for Free Lunch
32%
43%
Eligible for Reduced Lunch
6%
7%
School Statewide Testing
School District Name
St. Charles R-VI School District
Source: National Center for Education Statistics (NCES), MO Dept. of Education
School Notes
- School Mascot: Piracy
Frequently Asked Questions
What is St. Charles High School's ranking?
St. Charles High School is ranked #257 out of 2,076 schools, which ranks it among the top 20% of public schools in Missouri.
What schools are St. Charles High School often compared to?
St. Charles High Schoolis often viewed alongside schools like St. Charles West High School, Francis Howell High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
54% of students have achieved math proficiency (compared to the 40% MO state average), while 60-64% of students have achieved reading proficiency (compared to the 43% MO state average).
What is the graduation rate of St. Charles High School?
The graduation rate of St. Charles High School is 88%, which is lower than the Missouri state average of 90%.
How many students attend St. Charles High School?
782 students attend St. Charles High School.
What is the racial composition of the student body?
70% of St. Charles High School students are White, 14% of students are Black, 14% of students are Hispanic, 1% of students are Asian, and 1% of students are Two or more races.
What is the student-teacher ratio of St. Charles High School?
St. Charles High School has a student ration of 11:1, which is lower than the Missouri state average of 12:1.
What grades does St. Charles High School offer ?
St. Charles High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is St. Charles High School part of?
St. Charles High School is part of St. Charles R-VI School District.
School Reviews
Review St. Charles High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.
