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Obsidian Middle School (2026 Ranking) - Clearlake, CA

Obsidian Middle School

Obsidian Middle School serves 590 students in grades 6-8. 
The student-teacher ratio of 23:1 is higher than the California state level of 21:1.
Minority enrollment is 65% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).

Quick Facts (2026)

  • Grades: 6-8
  • Enrollment: 590 students
  • Student-Teacher Ratio: 23:1
  • Minority Enrollment: 65%
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

School Overview

Obsidian Middle School's student population of 590 students has stayed relatively flat over five school years.
The teacher population of 26 teachers has grown by 30% over five school years.
Grades Offered
Grades 6-8
Total Students
590 students
Total Classroom Teachers
26 teachers

School Rankings

The diversity score of Obsidian Middle School is 0.60, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
This School
State Level (CA)
Student-Teacher Ratio
23:1
21:1
American Indian
2%
1%
Hispanic
53%
56%
Black
3%
5%
White
35%
20%
Two or more races
7%
6%
All Ethnic Groups
0.60
Eligible for Free Lunch
73%
54%
Eligible for Reduced Lunch
4%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education

Frequently Asked Questions

How many students attend Obsidian Middle School?
590 students attend Obsidian Middle School.
What is the racial composition of the student body?
53% of Obsidian Middle School students are Hispanic, 35% of students are White, 7% of students are Two or more races, 3% of students are Black, and 2% of students are American Indian.
What is the student-teacher ratio of Obsidian Middle School?
Obsidian Middle School has a student ration of 23:1, which is higher than the California state average of 21:1.
What grades does Obsidian Middle School offer ?
Obsidian Middle School offers enrollment in grades 6-8
What school district is Obsidian Middle School part of?
Obsidian Middle School is part of Konocti Unified School District.

School Reviews

Review Obsidian Middle School. Reviews should be a few sentences in length. Please include any comments on:

  • Quality of academic programs, teachers, and facilities
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Quick Facts (2026)

  • Grades: 6-8
  • Enrollment: 590 students
  • Student-Teacher Ratio: 23:1
  • Minority Enrollment: 65%
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

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