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 – July 27, 2026
249 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 7, 2026
SAT — National
August 11, 2026
SAT — National
August 14, 2026
ACT — National
August 22, 2026
SAT — National
August 28, 2026
SAT — National
September 1, 2026
ACT — 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