St. Charles High
817
Students
11.1:1
S:T Ratio
School Snapshot
Key metrics at a glance20
B-
7
B
23%
C
11:1
A
This Week at St. Charles High – October 16, 2026
113 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at St. Charles High
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at St. Charles High.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
October 1, 2026 – October 30, 2026
PSAT 8/9 — Fall
October 1, 2026 – October 30, 2026
PSAT/NMSQT — Fall
October 1, 2026 – October 30, 2026
SAT — School Day - Fall
October 16, 2026
SAT — National
State Assessments
September 14, 2026 – December 18, 2026
MAP-Alternate Assessment — MAP-A
February 1, 2027 – May 21, 2027
MAP-Alternate Assessment — MAP-A
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725 N Kingshighway St, St Charles, MO 63301
(636)443-4100
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St. Charles R-VI