Standley Lake High School is a public secondary school operated by Jefferson County School District R-1 in Westminster, Colorado, United States. The school is located near 104th Avenue and Wadsworth Boulevard and is named for nearby Standley Lake.
Serving 1,137 students in grades 9-12, Standley Lake High School ranks in the top 30% of all schools in Colorado for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 43% (which is higher than the Colorado state average of 33%). The percentage of students achieving proficiency in reading/language arts is 65% (which is higher than the Colorado state average of 45%).
The student-teacher ratio of 19:1 is higher than the Colorado state level of 15:1.
Minority enrollment is 39% of the student body (majority Hispanic), which is lower than the Colorado state average of 50% (majority Hispanic).
Quick Facts (2025)
- Grades: 9-12
- Enrollment: 1,137 students
- Student-Teacher Ratio: 19:1
- Minority Enrollment: 39%
- Graduation Rate: 92% (Top 20% in CO)
- Overall Testing Rank: Top 30%
- Math Proficiency: 43% (Top 30%)
- Reading Proficiency: 65% (Top 20%)
- Science Proficiency: 29% (Top 50%)
- Source: National Center for Education Statistics (NCES), CO Dept. of Education
Top Rankings
Standley Lake High School ranks among the top 20% of public schools in Colorado for:
Category
Attribute
Reading/Language Arts Proficiency
Graduation Rate
School Overview
Standley Lake High School's student population of 1,137 students has declined by 15% over five school years.
The teacher population of 61 teachers has declined by 17% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,137 students
Gender %
Total Classroom Teachers
61 teachers
Year Founded
1988
Colors
White, Blue, Green, Blue/Green/White
School Calendar
First Day of School
Wed. Aug 20, 2025
Last Day of School
Mon. May 25, 2026
School Motto
'Gator Strong'
School Rankings
Standley Lake High School ranks within the top 30% of all 1,748 schools in Colorado (based off of combined math and reading proficiency testing data).
The diversity score of Standley Lake High School is 0.56, which is less than the diversity score at state average of 0.62. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#353 out of 1748 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
43%
33%
Reading/Language Arts Test Scores (% Proficient)
65%
45%
Science Test Scores (% Proficient)
(20-21)29%
29%
Student-Teacher Ratio
19:1
15:1
American Indian
n/a
1%
Asian
6%
3%
Hispanic
26%
36%
Black
1%
5%
White
61%
50%
Hawaiian
n/a
n/a
Two or more races
6%
5%
All Ethnic Groups
Graduation Rate
92%
82%
Eligible for Free Lunch
30%
39%
Eligible for Reduced Lunch
7%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CO Dept. of Education
School Notes
- School Mascot: Alligators
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Standley Lake High School's ranking?
Standley Lake High School is ranked #353 out of 1,748 schools, which ranks it among the top 30% of public schools in Colorado.
What schools are Standley Lake High School often compared to?
Standley Lake High Schoolis often viewed alongside schools like Ralston Valley Senior High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
43% of students have achieved math proficiency (compared to the 33% CO state average), while 65% of students have achieved reading proficiency (compared to the 45% CO state average).
What is the graduation rate of Standley Lake High School?
The graduation rate of Standley Lake High School is 92%, which is higher than the Colorado state average of 82%.
How many students attend Standley Lake High School?
1,137 students attend Standley Lake High School.
What is the racial composition of the student body?
61% of Standley Lake High School students are White, 26% of students are Hispanic, 6% of students are Asian, 6% of students are Two or more races, and 1% of students are Black.
What is the student-teacher ratio of Standley Lake High School?
Standley Lake High School has a student ration of 19:1, which is higher than the Colorado state average of 15:1.
What grades does Standley Lake High School offer ?
Standley Lake High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Standley Lake High School part of?
Standley Lake High School is part of Jefferson County School District No. R-1.
In what neighborhood is Standley Lake High School located?
Standley Lake High School is located in the West Westminster neighborhood of Broomfield, CO. There are 4 other public schools located in West Westminster.
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