Heritage High School
#22
Best ACT in Colorado High Schools
1,754
Students
20.7:1
S:T Ratio
School Snapshot
Key metrics at a glance1,220
A-
28
A
21
A+
40%
B-
21:1
B-
This Week at Heritage – August 18, 2026
232 students practicing on Varsity Tutors
Academic Resources
Typical courses and practice resources for students at Heritage High School
Standardized Test Dates
Upcoming national, state, and school calendar dates that affect students at Heritage High School.
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
January 11, 2027 – February 12, 2027
WIDA ACCESS
January 11, 2027 – February 12, 2027
WIDA Alternate ACCESS
April 5, 2027 – April 23, 2027
CMAS
April 5, 2027 – April 23, 2027
CoAlt
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ACT Prep
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1:1 Tutoring
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Practice Hub
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1401 West Geddes Avenue, Littleton, CO 80120
(303)347-7600
Littleton School District No. 6 in the county of Arapahoe
Academic Calendar
Important dates, holidays, and school events