Jefferson County Open Secondary
No overall score. High school ELA and math results (PSAT/SAT) are not in our data yet, so Colorado high schools have no score. How we score schools
Performance (state tests, 2025-26)
% met or exceeded expectations on state tests in Colorado, all students. Colored bars are green when the school is at or above the average for similar Colorado schools.
Results over time
How this school's published results have moved year by year.
All 8 published results by grade and test
As published by Colorado Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.
| Subject | Grade | Test | Result | Students tested |
|---|---|---|---|---|
| English language arts | Grade 7 | CMAS | 56.1 | 41 |
| English language arts | Grade 8 | CMAS | 66.7 | 39 |
| English language arts | All grades | CMAS | 61.3 | 80 |
| Math | Grade 7 | CMAS | 36.4 | 44 |
| Math | Grade 8 | CMAS | 35 | 40 |
| Math | All grades | CMAS | 35.7 | 84 |
| Science | Grade 8 | CMAS | 37.1 | 35 |
| Science | Grade 11 | CMAS | 33.3 | 42 |
School profile
- Grades
- 7-12
- Students
- 324
- Type
- High school
- Charter school
- No
- Program
- Regular
Students
District and location
Contact
Lakewood, CO 80215
"Typical" is the middle (median) high school in Colorado. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24).
Nearby high schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around Lakewood
Location
Official sources
Every figure on this page comes from published government data. Check the originals here; we refresh when states release new results.
U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD): school directory, grades served, enrollment and free/reduced-price lunch, 2023-24 and 2024-25. Spotted a mistake? Tell us.
Jefferson County Open Secondary at a glance
Jefferson County Open Secondary is a public high school in Lakewood, Colorado, serving grades 7-12. It is part of Jefferson County School District No. R-1. It has about 324 students (a typical Colorado high school has 410).
In 2025-26 state tests, 61% in English language arts (similar schools: 34%) and 36% in math (similar schools: 25%) reached the state standard (% met or exceeded expectations). Its English language arts result rose by 2 points from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.
Page updated 2026-10-12.