Enrollment
590
Middle
DISTRICT 303 · STATE 659
SCHOOL COMMUNITY·KONOCTI UNIFIED·NCES 062007014694
Obsidian Middle
15850-A Dam Road Extention, Clearlake, CA 95422 · (707) 994-6447 · Lake County
GRADES 06–08MIDDLE32-TOWNTITLE IREGULAR SCHOOL590 STUDENTS
Student : Teacher
22.4:1
26 FTE teachers
DISTRICT 15.0:1 · STATE 20.7:1
Free / Reduced Lunch
77%
454 students
DISTRICT 80% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 7 | 300 | 51% |
| Grade 8 | 290 | 49% |
Student demographics
59%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 58% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
21.6%
CA avg 49.1% . +4.9pp since 2023
Math
6.7%
CA avg 37.7% . +0.9pp since 2023
What this means: On the CAASPP, California's statewide test, about 22 of every 100 students at this school read and write at grade level and about 7 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 5 points since 2023, while math scores have held steady.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 2.6% | 19.0% | 24.2% | 54.2% |
| Math | 1.5% | 5.2% | 18.0% | 75.3% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 21.6% | 6.7% |
| 2023-24 | 16.7% | 5.8% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
12.7%
composite math + reading, all grades
Predicted
34.5%
based on CA schools with similar FRL share
Beats by
-21.7pp
below demographic expectation
What this means: About 13% of students here test proficient in math and reading, below the roughly 34% typical for California schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Obsidian Middle
Obsidian Middle's state test result (12.7% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Obsidian Middle this school | 590 | 76.9% | 12.7% |
| Eagle Peak Middle Redwood Valley | 552 | 77.0% | 25.7% |
| Mesa View Middle Calimesa | 717 | 72.0% | 31.0% |
| Lincoln Middle Oceanside | 621 | 72.3% | 29.4% |
| Anna McKenney Intermediate Marysville | 590 | 76.4% | 22.8% |
| Fruitvale Junior High Bakersfield | 693 | 72.6% | 48.8% |
Matched among California middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Obsidian Middle ranks
Among middle schools| Measure | This school | In California | In Lake County |
|---|---|---|---|
| State test proficiency ranked highest first | 12.7% | #1,181 of 1,224 | N/A |
| Math proficiency ranked highest first | 6.7% | #1,198 of 1,227 ▲ 5 | N/A |
| Reading proficiency ranked highest first | 21.6% | #1,137 of 1,227 ▲ 44 | N/A |
| Enrollment ranked largest first | 590 | #779 of 1,377 | #1 of 6 |
| Students per teacher ranked fewest first | 22.4:1 | #884 of 1,279 | N/A |
| Diversity index ranked most diverse first | 59.4% | #446 of 1,278 | N/A |
| Free and reduced lunch ranked highest share first | 76.9% | #606 of 1,329 | N/A |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 590 | 26.3 | 22.4:1 | 77% (454) |
| 2023-24 | 586 | 20.5 | 28.7:1 | 81% (472) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Obsidian Middle.
About Obsidian Middle
Obsidian Middle is a middle school in Clearlake, California, and it is part of Konocti Unified. It is open to students in grades 6 through 8 and enrolls 590 students.
Obsidian Middle belongs to Konocti Unified, a district of 10 schools and 3,985 students.
Federal enrollment data show Obsidian Middle is 53% Hispanic. Other groups include 35% White, 7% multiracial, 3% Black, and 2% Native American. The county population is about 25% Hispanic. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 59%.
Classroom staffing at Obsidian Middle totals 26.3 full-time-equivalent teachers, and the student-to-teacher ratio is 22.4:1. Statewide, middle schools in California average 20.7:1. Federal data show 77% of students (454) are eligible for free or reduced-price lunch.
Predicted from its free or reduced-price lunch share, Obsidian Middle would score about 34.5%. It scores 12.7%, a bottom-10% result among California schools on BeatsExpectations.
In Lake County, the median household earns about $60,621 a year, the share of adults with a bachelor's degree or higher is 18%, and roughly 11% of residents are in poverty. Across Lake County, 43 public schools serve about 10,167 students.
Blue Heron is the nearest public school to Obsidian Middle, less than a tenth of a mile away. Obsidian Middle is one of several public schools in the area, with at least 8 others within five miles. Among 4 nearby schools that report test results, Obsidian Middle ranks 4th on proficiency.
The National Center for Education Statistics classifies the school's location as Town: Distant, meaning it is in a town some distance from an urbanized area.
Parents, students, and staff can share information on special education services, counseling, and support programs here. Parents, students, alumni, and staff are welcome to post.
Lake County at a glance
View full county profilePopulation
68,152
Census ACS
Median income
$60,621
Household, ACS
Bachelor's+
18%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
43
10,167 students
Quick facts
Related schools
Other schools in Konocti Unified
- Lower Lake HighHigh · 966 students
- Lower Lake ElementaryElementary · 743 students
- PomoElementary · 702 students
- Burns ValleyElementary · 568 students
- East LakeElementary · 195 students
- Richard H. Lewis AlternativeCombined · 118 students
Other schools in Clearlake
- PomoElementary · 702 students
- Burns ValleyElementary · 568 students
- Richard H. Lewis AlternativeCombined · 118 students
- Clearlake CreativityCombined · 19 students
- Blue HeronHigh · 3 students
- Konocti Education CenterCombined
Other Obsidian Middle schools
One other US public school is named Obsidian Middle. Obsidian Middle is the largest of the 2.
- Obsidian Middle SchoolRedmond, OR · 568 students
Nearby schools
- Blue Heron0.1 mi · 3
- Richard H. Lewis Alternative0.1 mi · 118
- Clearlake Creativity0.4 mi · 19
- Lower Lake Elementary1.3 mi · 743
- Lower Lake High1.4 mi · 966
- Carle (William C.) High (Continuation)1.4 mi · 85
Frequently asked questions
About Obsidian MiddleHow many students attend Obsidian Middle?
Obsidian Middle enrolls approximately 590 students in grades 06-08.
What age range does Obsidian Middle serve?
Obsidian Middle serves students from grade 06 through grade 08.
How many teachers does Obsidian Middle have?
Obsidian Middle employs 26 FTE teachers, for a student-to-teacher ratio of 22.4:1.
What is the student diversity at Obsidian Middle?
Student demographics at Obsidian Middle are roughly 35% White, 53% Hispanic, 3% Black, 1% Asian, 7% Two or more.
What district is Obsidian Middle in?
Obsidian Middle is part of Konocti Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.