Oakhaven Montessori School
Private · Grades Pre-K–6 · 34 students
Ostmann Elem.
200 Meriwether Lewis Dr, O'Fallon, MO 63368
Grades
K–5
Elementary
Students
362
Enrolled 2024–25
Students per teacher
12.2 : 1
Full-time teachers
District
Fort Zumwalt School District
St. Charles County
Schola Grade A · Excellent
Letter grade (A–F) · compared with 1,103 Missouri elementary schools · How we grade
Percentiles compare this school with other Missouri elementary schools; the line marks the middle. Some measures aren't reported for this school, so the grade uses the ones available. 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 Ostmann Elem.
Ostmann Elem. is a public elementary school in O'Fallon, Missouri, serving grades K–5. It is part of Fort Zumwalt School District. The school is located in a large suburb in St. Charles County.
In the 2024–25 school year, 362 students were enrolled, with about 12.2 students for every full-time teacher. That ratio is close to the typical Missouri elementary school (12.1 students per teacher). Its Schola Grade is A (excellent), compared with 1,103 Missouri elementary schools.
Grades & enrollment
Students per grade, 2024–25Grades K–5
Location & nearby schools
School details
- Type
- Public School · What this means
- Level
- Elementary
- Grades offered
- K–5
- Enrollment (2024–25)
- 362 students
- Students per teacher
- 12.2 to 1
- Charter school
- No
- Magnet school
- No
- Locale
- Suburb — Large
- School district
- Fort Zumwalt School District
- County
- St. Charles County
- NCES school ID
- 290837002843
Schools near Ostmann Elem.
All 27 schools in O'Fallon →
Twin Chimneys Elem.
Public · Grades K–5 · 488 students
Dardenne Elem.
Public · Grades K–5 · 445 students
Emge Elem.
Public · Grades K–5 · 348 students
Crossroads Elem.
Public · Grades K–5 · 757 students
Pheasant Point Elem.
Public · Grades K–5 · 428 students
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.