School Overview
Union Mine High School, located in the foothills of El Dorado, California, serves as a prominent educational institution within the El Dorado Union High School District. Known for its distinct "Diamondback" mascot and spirited campus culture, the school provides a comprehensive academic program that balances rigorous college-preparatory coursework with a variety of Career Technical Education (CTE) pathways. The campus is situated in a semi-rural setting, fostering a tight-knit community atmosphere where staff and students focus on developing both academic excellence and personal character.

Beyond the classroom, Union Mine High emphasizes a well-rounded student experience through a robust selection of extracurricular activities, including competitive CIF sports, performing arts, and numerous student-led clubs. The school is particularly noted for its commitment to preparing students for life after graduation, whether through university pathways, vocational training, or direct entry into the workforce. By prioritizing student engagement and community involvement, Union Mine continues to be a central pillar of the El Dorado community, dedicated to empowering its diverse student body.
1,033
Total Students
48.9
Full-Time Teachers
21.1
Student/Teacher Ratio
37.3%
Free/Reduced Lunch
Student Demographics

Student Demographics Data Table

Student Demographics for Union Mine High
Demographic Student Count
White681
Hispanic256
Black8
Asian10
Two or More62
American Indian14
Pacific Islander2
  • White
    681 (65.9%)
  • Hispanic
    256 (24.8%)
  • Two or More
    62 (6.0%)
  • American Indian
    14 (1.4%)
  • Asian
    10 (1.0%)
  • Black
    8 (0.8%)
  • Pacific Islander
    2 (0.2%)
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: N/A
District: El Dorado Union High
Phone: (530)621-4003
Website: http://umhs.eduhsd.k12.ca.us/
Grade Range: 9th - 12th
Total Students: 1,033
Full-Time Teachers (FTE): 48.9
Pupil/Teacher Ratio: 21.1
NSLP Participation:1 Yes participating without using any Provision or the CEO
Qualified Free Lunch: 379
Qualified Reduced Lunch: 6
Grades Taught
Grade 9 252
Grade 10 276
Grade 11 256
Grade 12 249

Grades Taught Data Table

Grades Taught and Student Counts for Union Mine High
Grade Student Count
Grade 9252
Grade 10276
Grade 11256
Grade 12249
Gender Ratio

Student Gender Ratio Data Table

Student Gender Ratio for Union Mine High
Gender Student Count Percentage
Female50849.2%
Male52550.8%