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 1,123 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 41% of the student body (majority Hispanic), which is lower than the Colorado state average of 51% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-12
- Enrollment: 1,123 students
- Student-Teacher Ratio: 19:1
- Minority Enrollment: 41%
- 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%)
- Attendance Zone: Standley Lake High School serves the northern part of Broomfield, CO, covering an area of approximately 29.1 square miles. Most families can expect a typical drive of 5 to 10 minutes to reach the school, with the furthest edge of the zone located about 7.7 miles away.
- 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 1,123 students has declined by 13% over five school years.
The teacher population of 58 teachers has declined by 14% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,123 students
Total Classroom Teachers
58 teachers
Year Founded
1988
School Calendar
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 0.58, which is less than the diversity score at state average of 0.63. 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
1%
1%
Asian
5%
3%
Hispanic
27%
37%
Black
1%
5%
White
59%
49%
Hawaiian
n/a
n/a
Two or more races
7%
5%
All Ethnic Groups
Graduation Rate
92%
82.7%
Chronically Absent Students
(22-23)32.5%
33.6%
Eligible for Free Lunch
28%
39%
Eligible for Reduced Lunch
5%
5%
School Statewide Testing
School District Name
Sports
Colors
White, Blue, Green, Blue/Green/White
School Mascot
Alligators
Source: National Center for Education Statistics (NCES), CO Dept. of Education
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 82.7%.
How many students attend Standley Lake High School?
1,123 students attend Standley Lake High School.
What is the racial composition of the student body?
59% of Standley Lake High School students are White, 27% of students are Hispanic, 7% of students are Two or more races, 5% of students are Asian, 1% of students are American Indian, 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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