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If you could change one rule at Green Mountain High School, what would it be?
Community prompt from u/allk12. Replies below.
Enrollment
1,071
High
DISTRICT 847 · STATE 627
SCHOOL COMMUNITY·JEFFERSON COUNTY SCHOOL DISTRICT NO. R-1·NCES 080480000736
Green Mountain High School
13175 W GREEN MOUNTAIN DRIVE, LAKEWOOD, CO 80228 · (303) 982-9500 · Jefferson County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,071 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
20.1:1
53 FTE teachers
DISTRICT 16.9:1 · STATE 16.9:1
Free / Reduced Lunch
24%
255 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 | 264 | 25% |
| Grade 10 | 263 | 25% |
| Grade 11 | 268 | 25% |
| Grade 12 | 276 | 26% |
Student demographics
44%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
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
43.3%
composite math + reading, all grades
Predicted
52.3%
based on CO schools with similar FRL share
Beats by
-9.0pp
below demographic expectation
What this means: About 43% of students here test proficient in math and reading, compared with the roughly 52% typical for Colorado schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Colorado's top nor bottom 10%.
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 Green Mountain High School
Green Mountain High School's state test result (43.3% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Green Mountain High School this school | 1,071 | 23.8% | 43.3% |
| Mead High School LONGMONT | 1,174 | 26.1% | 28.6% |
| Timnath Middle-High School TIMNATH | 1,456 | 19.4% | 46.3% |
| Golden High School GOLDEN | 1,469 | 22.1% | 40.9% |
| Liberty High School COLORADO SPRINGS | 1,526 | 25.4% | 41.5% |
| Severance High School SEVERANCE | 943 | 28.3% | 28.9% |
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 Green Mountain High School ranks
Among high schools| Measure | This school | In Colorado | In Jefferson County |
|---|---|---|---|
| State test proficiency ranked highest first | 43.3% | #48 of 231 | #5 of 19 |
| Enrollment ranked largest first | 1,071 | #102 of 409 | #12 of 28 |
| Students per teacher ranked fewest first | 20.1:1 | #186 of 250 | #15 of 21 |
| Diversity index ranked most diverse first | 44.2% | #154 of 250 | #13 of 21 |
| Free and reduced lunch ranked highest share first | 23.8% | #278 of 320 | #16 of 22 |
| Enrollment change since 2017-18 ranked steepest decline first | -3.3% | #125 of 139 | #14 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
1,071
-71 (-6%) vs 2020
-27% since 1990-91, when it was 1,475
Student : Teacher
20.1:1
was 21.6:1
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 | 1,071 | 53.3 | 20.1:1 | 24% (255) |
| 2023-24 | 1,081 | 55.7 | 19.4:1 | 26% (285) |
| 2022-23 | 1,085 | 58 | 18.7:1 | 27% (293) |
| 2020-21 | 1,142 | 53 | 21.6:1 | 23% (266) |
| 2017-18 | 1,108 | 60.3 | 18.4:1 | 25% (274) |
| 2015-16 | 1,126 | 59 | 19.1:1 | 25% (283) |
| 2010-11 | 1,251 | 66 | 18.9:1 | 18% (231) |
| 2000-01 | 1,595 | 76 | 21.0:1 | 6% (92) |
| 1990-91 | 1,475 | 68 | 21.7:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Green Mountain High School.
Since 2017-18: students down 3% (1,108 to 1,071); teachers down 12% (60.3 to 53.3).
About Green Mountain High School
Located in LAKEWOOD, Colorado, Green Mountain High School is a large high school. Its enrollment is 1,071 students, spread over grades 9 through 12. That compares with an average of about 627 students for high schools in Colorado.
In Jefferson County School District No. R-1, 148 schools enroll a combined 74,935 students.
Federal enrollment data show Green Mountain High School is 72% White. Enrollment also includes 20% Hispanic, 4% multiracial, and 2% Asian. A diversity index of 44% means there is a 44% chance two randomly chosen students at Green Mountain High School are from different groups.
Green Mountain High School reports a ratio of 20.1 students per teacher, from 53.3 full-time-equivalent teachers. The school's 20.1:1 compares with an average of 16.9:1 for high schools in Colorado. Lunch program data show 24% of students are eligible for free or reduced-price meals. That is lower than the 32% average for public schools in Jefferson County.
After adjusting for student poverty, Green Mountain High School lands between the top and bottom 10% of Colorado schools. Its average proficiency rate across its state test results is 43.3%; the prediction is 52.3%.
For Jefferson County, Census Bureau data show median household income comes to about $110,656, about 52% of adults have at least a bachelor's degree, and roughly 4% of residents are in poverty. There are 168 public schools in the county, enrolling about 74,739, Green Mountain High School among them.
Green Mountain High School's closest public school neighbor is Devinny Elementary School, about 0.6 miles away. The five-mile area around Green Mountain High School holds at least 8 other public schools. Nearby schools average 52.2% on proficiency, and Green Mountain High School is below that at 43.3%.
NCES describes the area around Green Mountain High School as Suburb: Large, meaning in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
From 2020-21 to 2024-25, enrollment decreased from 1,142 to 1,071, a 6% decline. Federal data show the ratio falling from 21.6:1 to 20.1:1.
The allk12 page for Green Mountain High School lets the school community talk about athletics, class schedules, and weather closures. You can also rate the school on this page.
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 LAKEWOOD
- Lakewood High SchoolHigh · 1,735 students
- Bear Creek High SchoolHigh · 1,344 students
- Alameda International Junior/Senior High SchoolHigh · 1,002 students
- Bear Creek K-8 SchoolElementary · 863 students
- Dunstan Middle SchoolMiddle · 798 students
- Addenbrooke Classical Grammar SchoolElementary · 774 students
Nearby schools
- Devinny Elementary School0.6 mi · 505
- Foothills Elementary School0.7 mi · 363
- Dunstan Middle School0.7 mi · 798
- Hutchinson Elementary School0.8 mi · 328
- Rooney Ranch Elementary School1.2 mi · 492
- Jeffco Virtual Academy1.2 mi · 441
Frequently asked questions
About Green Mountain High SchoolHow many students attend Green Mountain High School?
Green Mountain High School enrolls approximately 1,071 students in grades 09-12.
What age range does Green Mountain High School serve?
Green Mountain High School serves students from grade 09 through grade 12.
How many teachers does Green Mountain High School have?
Green Mountain High School employs 53 FTE teachers, for a student-to-teacher ratio of 20.1:1.
What is the racial breakdown of students at Green Mountain High School?
At Green Mountain High School, the student body is approximately 72% White, 20% Hispanic, 1% Black, 2% Asian, 4% Two or more.
Is Green Mountain High School public or private?
Green Mountain 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.