Jefferson County Open Secondary

    7655 West 10th Avenue
    Lakewood, CO 80214
    (303) 982-7045
    318 students
    14 students per teacher
    4.5555553 stars out of 5,
    9 Community Reviews

    students, students per teacher

    School Profile for Jefferson County Open Secondary

    Jefferson County Open Secondary, a public school located in Lakewood, CO, serves grades 7-12 in the Jefferson County R-1 School District.It has received a GreatSchools Rating of 5 out of 10, based on a variety of school quality measures. Read reviews of Jefferson County Open Secondary from parents, students and school staff below.

    Test Scores for Jefferson County Open Secondary

    2019 Colorado Measures of Academic Success (CMAS) (CMAS) - Details

    Grade:When changing selection within the following select drop down field, below test scores will be updated according to the grade selected

    English Language Arts

    54% Proficient


    36% Proficient


    11% Proficient
    Test Description:
    In 2018-2019, students in Colorado took the CMAS assessment in English Language Arts, Mathematics, and Science.