Lee's Summit Sr. High
#21
Best ACT in Missouri High Schools
1,920
Students
13.4:1
S:T Ratio
School Snapshot
Key metrics at a glance24
B+
3
B-
5%
C
13:1
A-
This Week at Lee's Summit Sr. High – October 16, 2026
260 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at Lee's Summit Sr. High
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Lee's Summit Sr. 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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400 Se Blue Pkwy, Lee'S Summit, MO 64063
(816)986-2000
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Lee's Summit R-VII
Academic Calendar
Important dates, holidays, and school events