📊 What this ranking measures
Rankings are based on academic achievement — the share of students scoring proficient or above on state reading and math assessments (MAP 2025), ranked against other districts in the same state — not on spending, district size, or staffing. See full methodology →
All 5 Rated Districts in St. Charles County, MO
Sorted by rating, then state percentile
| County Rank | District | District Office | Rating | State Percentile |
|---|---|---|---|---|
| #1 | Francis Howell R-III School District | O'fallon | 10/10 Excellent | 96th |
| #2 | Fort Zumwalt R-II School District | O'fallon | 10/10 Excellent | 92nd |
| #3 | Wentzville R-IV School District | Wentzville | 9/10 Excellent | 89th |
| #4 | Orchard Farm R-V School District | Saint Charles | 9/10 Excellent | 86th |
| #5 | St. Charles R-VI School District | St Charles | 9/10 Excellent | 85th |
Best School Districts in St. Charles County, Missouri (2026)
This page lists the 5 public school districts headquartered in St. Charles County, Missouri that have a SchoolDistrictFinder rating, scored using MAP 2025 state assessment data. The county rank is simply their order here; the state percentile compares each district with every rated district in Missouri, which is how the 1–10 rating is set. Ratings are not comparable with districts in other states.
Districts are placed in the county of their NCES directory listing. A district's boundaries can cross county lines, and a home in St. Charles County may be served by a district headquartered next door — search your address or zip code to confirm.
Frequently Asked Questions
What is the best-rated school district in St. Charles County, Missouri? ▼
Among the 5 rated districts in St. Charles County, Missouri, the highest-rated is Francis Howell R-III School District (O'fallon), rated 10/10 (Excellent) and in the 96th percentile of Missouri districts on MAP 2025 reading and math proficiency.
How are these rankings calculated? ▼
Each district's rating comes from the share of its students scoring proficient or above on state reading and math assessments (MAP 2025), percentile-ranked against all rated districts in Missouri and converted to a 1–10 scale. Full methodology here.