1
What's the vibe like in the hallways at Standley Lake High School right now?
Community prompt from u/allk12. Replies below.
Enrollment
1,123
High
DISTRICT 847 · STATE 627
SCHOOL COMMUNITY·JEFFERSON COUNTY SCHOOL DISTRICT NO. R-1·NCES 080480001487
Standley Lake High School
9300 WEST 104TH AVENUE, WESTMINSTER, CO 80021 · (303) 982-3311 · Jefferson County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,123 STUDENTS
·
allk12 Grade
Not graded
This school has no state test results for 2023-24 or 2024-25 to grade, which is common for schools that end before third grade. How grades work
Student : Teacher
19.5:1
58 FTE teachers
DISTRICT 16.9:1 · STATE 16.9:1
Free / Reduced Lunch
33%
367 students
DISTRICT 35% · STATE 50%
Community
6
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 284 | 25% |
| Grade 10 | 285 | 25% |
| Grade 11 | 266 | 24% |
| Grade 12 | 288 | 26% |
Student demographics
57%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 52% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of CO schools after controlling for student poverty
Actual proficiency
30.4%
composite math + reading, all grades
Predicted
46.9%
based on CO schools with similar FRL share
Beats by
-16.6pp
below demographic expectation
What this means: About 30% of students here test proficient in math and reading, below the roughly 47% typical for Colorado schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Standley Lake High School
Standley Lake High School's state test result (30.4% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Standley Lake High School this school | 1,123 | 32.7% | 30.4% |
| Rampart High School COLORADO SPRINGS | 1,305 | 31.4% | 44.7% |
| Horizon High School BRIGHTON | 1,966 | 33.1% | 32.3% |
| Silver Creek High School LONGMONT | 1,208 | 27.0% | 33.9% |
| Niwot High School NIWOT | 1,509 | 25.6% | 51.0% |
| Lakewood High School LAKEWOOD | 1,735 | 36.8% | 35.5% |
Matched among Colorado high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Standley Lake High School ranks
Among high schools| Measure | This school | In Colorado | In Jefferson County |
|---|---|---|---|
| State test proficiency ranked highest first | 30.4% | #111 of 231 | #13 of 19 |
| Enrollment ranked largest first | 1,123 | #94 of 409 | #11 of 28 |
| Students per teacher ranked fewest first | 19.5:1 | #167 of 250 | #13 of 21 |
| Diversity index ranked most diverse first | 56.7% | #58 of 250 | #6 of 21 |
| Free and reduced lunch ranked highest share first | 32.7% | #230 of 320 | #11 of 22 |
| Enrollment change since 2017-18 ranked steepest decline first | -17.4% | #52 of 139 | #7 of 16 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
1,123
-172 (-13%) vs 2020
-13% since 1990-91, when it was 1,294
Student : Teacher
19.5:1
was 19.3:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 1,123 | 57.6 | 19.5:1 | 33% (367) |
| 2023-24 | 1,137 | 60.5 | 18.8:1 | 37% (418) |
| 2022-23 | 1,180 | 63.5 | 18.6:1 | 36% (419) |
| 2020-21 | 1,295 | 67 | 19.3:1 | 30% (390) |
| 2017-18 | 1,359 | 70 | 19.4:1 | 31% (427) |
| 2015-16 | 1,317 | 66 | 19.9:1 | 29% (385) |
| 2010-11 | 1,479 | 77 | 19.2:1 | 22% (330) |
| 2000-01 | 1,852 | 84 | 22.1:1 | 7% (132) |
| 1990-91 | 1,294 | 64 | 20.2:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Standley Lake High School.
Since 2017-18: students down 17% (1,359 to 1,123); teachers down 18% (70 to 57.6).
About Standley Lake High School
In WESTMINSTER, Colorado, Standley Lake High School is a large high school. The school enrolls 1,123 students, from grades 9 through 12. An average school in this group (high schools in Colorado) has about 627 students.
District-wide, Jefferson County School District No. R-1 has 148 schools and 74,935 students.
At Standley Lake High School, White students make up 59% of the student body. It is also 27% Hispanic, 6% multiracial, and 5% Asian. For comparison, the population of Jefferson County is roughly 80% White. Pick two students at random and there is a 57% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.
The school employs the equivalent of 57.6 full-time teachers, for a ratio of 19.5:1. That is higher than the 16.9:1 average for high schools in Colorado. The free or reduced-price lunch share, often used to gauge student poverty, is 33%. That tracks the 32% average for public schools in Jefferson County.
Standley Lake High School is 16.6 points below expectations on state tests, given its student poverty level, placing it in the bottom 10% in Colorado.
Jefferson County has about 579,377 residents, and the median household income is $110,656, a bachelor's degree or higher is held by about 52% of adults, and the share of residents below the poverty line is 4%. In all, Jefferson County has 168 public schools and roughly 74,739 students.
The closest public school, Wayne Carle Middle School, is about 0.8 miles from Standley Lake High School. Other public schools within five miles: at least 8. Standley Lake High School is 6th of 8 nearby schools by average proficiency rate.
Its NCES locale code is Suburb: Large: the school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
2024-25 enrollment was 1,123, a 13% decrease from 1,295 in 2020-21.
To ask about science fairs, picture day, and bus routes, start a discussion on this page. Posting is open to anyone connected to the school.
Jefferson County at a glance
View full county profilePopulation
579,377
Census ACS
Median income
$110,656
Household, ACS
Bachelor's+
52%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
168
74,739 students
Quick facts
Related schools
Other schools in Jefferson County School District No. R-1
- Arvada West High SchoolHigh · 1,923 students
- Ralston Valley Senior High SchoolHigh · 1,875 students
- Chatfield High SchoolHigh · 1,808 students
- Lakewood High SchoolHigh · 1,735 students
- Columbine High SchoolHigh · 1,710 students
- Golden High SchoolHigh · 1,469 students
Other schools in WESTMINSTER
- Westminster High SchoolHigh · 2,010 students
- Academy of Charter SchoolsCombined · 1,887 students
- Mountain Range High SchoolHigh · 1,788 students
- Colorado Preparatory Academy Elementary SchoolElementary · 933 students
- Colorado Preparatory Academy High SchoolHigh · 823 students
- Colorado Preparatory Academy Middle SchoolMiddle · 681 students
Nearby schools
- Wayne Carle Middle School0.8 mi · 438
- Lukas Elementary School0.8 mi · 402
- Summit Academy0.9 mi · 66
- Jefferson Academy Elementary0.9 mi · 737
- Woodrow Wilson Charter Academy1.3 mi · 518
- Doral Academy of Colorado1.4 mi · 168
Frequently asked questions
About Standley Lake High SchoolHow large is Standley Lake High School?
Standley Lake High School enrolls approximately 1,123 students in grades 09-12.
What age range does Standley Lake High School serve?
Standley Lake High School serves students from grade 09 through grade 12.
How many teachers does Standley Lake High School have?
Standley Lake High School employs 58 FTE teachers, for a student-to-teacher ratio of 19.5:1.
What is the student diversity at Standley Lake High School?
Student demographics at Standley Lake High School are roughly 59% White, 27% Hispanic, 1% Black, 5% Asian, 6% Two or more.
Is Standley Lake High School public or private?
Standley Lake High School is a public K-12 school, overseen by Jefferson County School District No. R-1.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.