27 public K-12 schools in St Charles from NCES Common Core of Data: enrollment, grade span, demographics, and Civil Rights Data Collection statistics for every active campus.
27 public schools ranked by quality score. NCES CCD 2024-25 data.
The highest-ranked of St Charles's 27 public schools is Francis Howell High, scoring 49/100, against a city average of 54.5/100. Computed live across every St Charles campus reporting to NCES.
How the St Charles Public-School Landscape Breaks Down
St Charles, MO enrolls 18,916 students across 27 public schools reporting to the National Center for Education Statistics. The average student-teacher ratio across the city is 13.5:1, and the composite quality score, derived from student-teacher ratio, counselor access, gifted-program availability, and CRDC attendance data, averages 54.5/100. Schools must report at least five campuses in a city to appear in this listing, which is why very small towns may redirect to the broader county or state view.
The most-resourced campus in St Charles on this index is Francis Howell High, at 49/100 on the Resource Investment Index with 1,843 enrolled students. What the index does and doesn't measure; click any school below for its full component breakdown.
St Charles spans 3 districts, each filing its own NCES F-33 return, per-pupil spending can vary between neighbouring campuses. Sort the table below by enrollment, level, or district; click any school for its full profile.
St Charles school enrollment varies 16× across entities
St Charles school enrollment ranges from 117 students (lowest) to 1,843 students (highest), a spread of 1,726 students. That spread reflects typical urban portfolio variation between specialty programs and large neighbourhood schools. Per-school staffing, programme depth, and capital-renovation cycles often diverge inside the same city based on enrollment shape, a 200-student magnet runs a different operational model than a 2,000-student comprehensive high school.
St Charles student-teacher ratio is 13.5:1 — low (typically associated with smaller schools or per-school staffing investment that often correlates with stronger per-student supports)
student-teacher ratio is the simplest comparative metric but it does not capture the full picture: the ratio counts FTE classroom teachers against total enrollment, push-in specialists, English-language aides, special-education co-teachers, and counselors are not included in most reporting Lower values often correlate with smaller scale and population characteristics rather than higher resource budgets per se.
Most racially and ethnically mixed schools in St Charles
Ranked by the Simpson student-body diversity index (0-100) from NCES race and ethnicity data, where higher means a more evenly mixed student body. It measures mix, not quality.
The highest-ranked school in St Charles is Francis Howell High with a quality score of 49/100. There are 27 public schools in St Charles with 18,916 total students.
How many schools are in St Charles, MO? ▼
St Charles has 27 public schools with a total enrollment of 18,916 students. Average student-teacher ratio: 13.5:1.
Data from NCES Common Core of Data (CCD) 2024-25 and Civil Rights Data Collection (CRDC) 2021-22. Quality scores based on student-teacher ratio,
counselor access, gifted programs, and attendance. Schools must have 5+ in the city to be listed.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the NCES Common Core of Data (CCD). Consult a qualified professional before making decisions based on this data.
Read our methodology, which explains how this data is sourced, computed, and verified.
