Jefferson County Open Secondary

School Overview
Jefferson County Open Secondary (JCOS), located in Lakewood, Colorado, is a unique public alternative school serving students in grades 7 through 12. Unlike traditional middle and high schools, JCOS is built on a philosophy of "democratic education," which emphasizes student agency, self-directed learning, and the development of personal responsibility. The school fosters a close-knit community where students are encouraged to take an active role in shaping their own educational path, often working in multi-age groups and participating in elective-heavy curricula that prioritize critical thinking over standardized testing.

The culture at Jefferson County Open Secondary is defined by its focus on strong teacher-student relationships and a collaborative governance model. Because the school values the "whole student," it places a significant emphasis on social-emotional learning, community service, and real-world project-based experiences. By minimizing rigid structures and fostering an environment of mutual respect, the school aims to prepare students not just for college, but for active citizenship and lifelong learning in a diverse and evolving society.
317
Total Students
21.0
Full-Time Teachers
15.1
Student/Teacher Ratio
N/A
Free/Reduced Lunch
Student Demographics

Student Demographics Data Table

Student Demographics for Jefferson County Open Secondary
Demographic Student Count
White241
Hispanic49
Black3
Asian3
Two or More19
American Indian1
Pacific Islander1
  • White
    241 (76.0 %)
  • Hispanic
    49 (15.5 %)
  • Two or More
    19 (6.0 %)
  • Black
    3 (0.9 %)
  • Asian
    3 (0.9 %)
  • American Indian
    1 (0.3 %)
  • Pacific Islander
    1 (0.3 %)
School Location
School Details
Status: Open
School Level: High School
School Type: Regular School
Charter Status:* Public Non-Charter
Virtual Instruction: No virtual instruction
Shared Time Status: No
District: Jefferson County School District No. R-1
Phone: (303)982-7045
Grade Range: 7th - 12th
Total Students: 317
Full-Time Teachers (FTE): 21.0
Pupil/Teacher Ratio: 15.1
NSLP Participation:1 No
Qualified Free Lunch: N/A
Qualified Reduced Lunch: N/A
Grades Taught
Grade 7 48
Grade 8 48
Grade 9 50
Grade 10 54
Grade 11 55
Grade 12 62

Grades Taught Data Table

Grades Taught and Student Counts for Jefferson County Open Secondary
Grade Student Count
Grade 748
Grade 848
Grade 950
Grade 1054
Grade 1155
Grade 1262
Gender Ratio

Student Gender Ratio Data Table

Student Gender Ratio for Jefferson County Open Secondary
Gender Student Count Percentage
Female15649.2%
Male16150.8%
Nearby High Schools (Within 10 Miles)