Obsidian Middle School

15850-a Dam Road Extention
Clearlake, CA 95422
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%
Asian
n/a
12%
Hispanic
53%
56%
Black
3%
5%
White
35%
20%
Hawaiian
n/a
n/a
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
Konocti Unified School District
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
  • Availability of music, art, sports and other extracurricular activities
Rate this school:

Recent Articles

AI Report Cards: Should Schools Evaluate AI Use?
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.

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

Quick Links


Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 75

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 82

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 88

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 94

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 100

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 106

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 112

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 123

Notice: Javascript file does not exist: /home/devsarath/workspace/psr/public_html/javascript/components/popper.min.js in /home/devsarath/workspace/shared/misc/JSCompiler.inc.php on line 242

Notice: Javascript file does not exist: /home/devsarath/workspace/psr/public_html/javascript/components/tippy.min.js in /home/devsarath/workspace/shared/misc/JSCompiler.inc.php on line 242

Notice: Directory does not exist in /home/devsarath/workspace/shared/misc/JSCompiler.inc.php on line 242

Notice: Unable to save compiled js file in /home/devsarath/workspace/shared/misc/JSCompiler.inc.php on line 242