A−
Standley Lake High School
PublicHighGrades 9–12
9300 West 104th Avenue, Westminster, CO 80021 · (303) 982-3311 · Part of Jefferson County School District R-1
Students
1,123
Students per teacher
19:1
Free or reduced lunch
33%
Setting
Suburb
Grades
9–12
What stands out about Standley Lake High School
- School Grade A−: near the top of Colorado’s public schools
- Math proficiency 8 pts above the state
- Reading / language arts 14 pts above the state
- Enrollment down 13.3% since 2020
On the path
Where Idledale kids come from and go next.
9–1227 high schoolsDepends on your address
9–12Standley Lake High SchoolYou are here
Test scores
EDFacts via Urban Institute Education Data Portal (SY2020-21) · 2020–21Math proficiency38%
State average 30.5%
Reading / language arts61%
State average 47%
Location
Directions ↗
9300 West 104th Avenue, Westminster
Students
Enrollment by grade
Grade 9284
Grade 10285
Grade 11266
Grade 12288
Enrollment over time
1,295’20
1,221’21
1,180’22
1,137’23
1,123’24
Down 13.3% since 2020.
Who goes here
White 59%Hispanic 27%Two or more races 6%Asian 5%Black 1%American Indian/Alaska Native <1%Native Hawaiian/Pacific Islander <1%
As reported to NCES, share of students with a reported race or ethnicity.
What neighbors say
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Parents talk
Conversations in Town Square that mention Standley Lake High School.
Other schools in Jefferson County School District R-1
School facts: U.S. Department of Education (NCES), 2024-2025 school year. Scores: EDFacts via Urban Institute Education Data Portal (SY2020-21). The School Grade is our own summary of state test results. Neighbor ratings are opinions, not an official measure of school quality.