International High school @ Largo
#30
Best Student:Teacher Ratio in Maryland
389
Students
13:1
S:T Ratio
School Snapshot
Key metrics at a glance1,250
A-
26
A-
7
B
17%
C
13:1
A-
This Week at International High school @ Largo – August 17, 2026
46 students practicing on Varsity Tutors
Academic Resources
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Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at International High school @ Largo.
National Tests
August 1, 2026 – November 30, 2026
ISEE — Fall Testing Season
August 3, 2026 – June 30, 2027
SSAT — Flex Testing
August 22, 2026
SAT — National
August 28, 2026
SAT — National
September 1, 2026
ACT — National
September 1, 2026
SAT — National
State Assessments
December 7, 2026 – January 22, 2027
MCAP — ELA
December 7, 2026 – January 22, 2027
MCAP — Mathematics
December 7, 2026 – January 22, 2027
MCAP — Government EOC
January 6, 2027 – March 3, 2027
WIDA ACCESS
March 29, 2027 – May 28, 2027
MCAP — Science (LS MISA)
March 29, 2027 – May 28, 2027
MCAP — Government
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505 Largo Rd, Upper Marlboro, MD 20772
(301)702-3810
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Prince George's County Public Schools
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Academic Calendar
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