1
What's the vibe like in the hallways at Los Osos Middle right now?
Community prompt from u/allk12. Replies below.
Enrollment
494
Middle
DISTRICT 489 · STATE 659
SCHOOL COMMUNITY·SAN LUIS COASTAL UNIFIED·NCES 063480005873
Los Osos Middle
1555 El Moro St., Los Osos, CA 93402 · (805) 534-2835 · San Luis Obispo County
GRADES 06–08MIDDLE41-RURALTITLE IREGULAR SCHOOL494 STUDENTS
A
allk12 Grade
Scored higher than 85% of California public middle schools
- A-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- A-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- B+Three-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public middle schools
Student : Teacher
18.5:1
27 FTE teachers
DISTRICT 23.5:1 · STATE 20.7:1
Free / Reduced Lunch
51%
254 students
DISTRICT 42% · STATE 65%
Community
6
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 6 | 136 | 28% |
| Grade 7 | 170 | 34% |
| Grade 8 | 188 | 38% |
Student demographics
55%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 59% · 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
School pathway
Based on grade levels within San Luis Coastal Unified. Attendance zones can vary; confirm enrollment with the district.
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
67.4%
CA avg 49.1% . +14.4pp since 2014
Math
52.5%
CA avg 37.7% . +13.5pp since 2014
What this means: On the CAASPP, California's statewide test, about 67 of every 100 students at this school read and write at grade level and about 53 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 14 points since 2014, while math scores are up about 14 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 30.9% | 36.4% | 18.3% | 14.3% |
| Math | 29.9% | 22.7% | 21.2% | 26.3% |
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 | 67.4% | 52.5% |
| 2023-24 | 62.8% | 46.3% |
| 2022-23 | 62.6% | 45.7% |
| 2021-22 | 65.5% | 46.5% |
| 2020-21 | 58.0% | 43.9% |
| 2018-19 | 69.9% | 55.4% |
| 2017-18 | 69.7% | 57.0% |
| 2016-17 | 70.4% | 54.9% |
| 2015-16 | 71.0% | 56.0% |
| 2014-15 | 53.0% | 39.0% |
% 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
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
57.3%
composite math + reading, all grades
Predicted
49.4%
based on CA schools with similar FRL share
Beats by
+7.9pp
above demographic expectation
What this means: About 57% of students here test proficient in math and reading, compared with the roughly 49% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.
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 Los Osos Middle
Los Osos Middle's state test result (57.3% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Los Osos Middle this school | 494 | 51.4% | 57.3% |
| West Cottonwood Junior High Cottonwood | 419 | 50.6% | 42.8% |
| Toyon Middle Valley Springs | 522 | 56.1% | 16.6% |
| Louis Pasteur Fundamental Middle Orangevale | 708 | 52.4% | 43.0% |
| Herbert C. Green Middle Placerville | 363 | 49.9% | 28.5% |
| Andrew Carnegie Middle Orangevale | 687 | 45.9% | 44.2% |
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 Los Osos Middle ranks
Among middle schools| Measure | This school | In California | In San Luis Obispo County |
|---|---|---|---|
| State test proficiency ranked highest first | 57.3% | #255 of 1,224 | #3 of 12 |
| Math proficiency ranked highest first | 52.5% | #253 of 1,227 ▲ 50 | #3 of 12 ▲ 1 |
| Reading proficiency ranked highest first | 67.4% | #220 of 1,227 ▲ 31 | #3 of 12 no change |
| 3-year test score change ranked biggest gain first | +4.0pp | #400 of 1,214 | #3 of 11 |
| Enrollment ranked largest first | 494 | #933 of 1,377 | #6 of 12 |
| Students per teacher ranked fewest first | 18.5:1 | #264 of 1,279 | #2 of 10 |
| Diversity index ranked most diverse first | 55.4% | #538 of 1,278 | #4 of 10 |
| Free and reduced lunch ranked highest share first | 51.4% | #928 of 1,329 | #6 of 12 |
| Enrollment change since 2017-18 ranked steepest decline first | -17.5% | #422 of 930 | #1 of 8 |
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.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
494
-47 (-9%) vs 2020
+1% since 1990-91, when it was 490
Student : Teacher
18.5:1
was 18.7:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 494 | 26.7 | 18.5:1 | 51% (254) |
| 2023-24 | 486 | 27.9 | 17.4:1 | 55% (269) |
| 2022-23 | 539 | 27.3 | 19.8:1 | 42% (224) |
| 2020-21 | 541 | 29 | 18.7:1 | 43% (230) |
| 2017-18 | 599 | 28.8 | 20.8:1 | 49% (291) |
| 2015-16 | 610 | 30 | 20.3:1 | 45% (277) |
| 2010-11 | 382 | N/A | N/A | 43% (166) |
| 2000-01 | 502 | 24 | 20.9:1 | 25% (126) |
| 1990-91 | 490 | 27 | 18.1:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Los Osos Middle.
Since 2017-18: students down 18% (599 to 494); teachers down 7% (28.8 to 26.7).
About Los Osos Middle
Los Osos Middle is a small middle school in Los Osos, California. The school runs grades 6 through 8 and enrolls 494 students. That compares with an average of about 659 students for middle schools in California.
San Luis Coastal Unified has 7,653 students in 16 schools, and Los Osos Middle is one of those schools.
White students are 62% of those enrolled at Los Osos Middle. The remaining shares are 23% Hispanic, 8% multiracial, and 6% Asian. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 55%.
Its ratio of 18.5:1 is based on 26.7 full-time-equivalent teachers. The average for middle schools in California is 20.7:1, so this school has fewer students per teacher. In all, 51% of students qualify for free or reduced-price lunch. Public schools in San Luis Obispo County average a similar 54%.
Los Osos Middle holds an A allk12 Grade, placing it above 85% of California public middle schools.
BeatsExpectations compares each school's average proficiency rate across its state test results with a prediction based on free or reduced-price lunch eligibility. For Los Osos Middle, the prediction is 49.4% and the result is 57.3%.
For the population of San Luis Obispo County, the median household earns about $97,446 a year, about 40% of adults have at least a bachelor's degree, and the poverty rate is about 6%. Los Osos Middle shares San Luis Obispo County with 82 other public schools.
The closest school to Los Osos Middle is Baywood Elementary, located about 0.8 miles away. The count of other public schools within five miles is 5. Among its closest neighbors with test data, Los Osos Middle is 2nd of 6 on proficiency.
Los Osos Middle has an NCES locale of Rural: Fringe.
The school's enrollment decreased 9% from 2020-21 to 2024-25.
Use the discussion section to ask about open houses, carpools, and field trips at Los Osos Middle. Current and former families are welcome to add their experience.
San Luis Obispo County at a glance
View full county profilePopulation
281,555
Census ACS
Median income
$97,446
Household, ACS
Bachelor's+
40%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
83
33,339 students
Quick facts
Related schools
Other schools in San Luis Coastal Unified
- San Luis Obispo HighHigh · 1,678 students
- Laguna MiddleMiddle · 780 students
- Morro Bay HighHigh · 751 students
- C L Smith ElementaryElementary · 528 students
- Los Ranchos ElementaryElementary · 521 students
- Pacheco ElementaryElementary · 488 students
Other schools in Los Osos
- Baywood ElementaryElementary · 342 students
- Monarch Grove ElementaryElementary · 324 students
Nearby schools
- Baywood Elementary0.8 mi · 342
- Monarch Grove Elementary1.8 mi · 324
- San Luis County Special Education4.4 mi · 17
- Morro Bay High4.6 mi · 751
- San Luis Obispo County Community4.7 mi · 76
- Grizzly ChalleNGe Charter5.1 mi · 241
Frequently asked questions
About Los Osos MiddleHow large is Los Osos Middle?
Los Osos Middle enrolls approximately 494 students in grades 06-08.
Is Los Osos Middle an elementary, middle, or high school?
Los Osos Middle is a middle school covering grades 06-08.
How many teachers does Los Osos Middle have?
Los Osos Middle employs 27 FTE teachers, for a student-to-teacher ratio of 18.5:1.
How diverse is Los Osos Middle?
Los Osos Middle reports a student body of 62% White, 23% Hispanic, 0% Black, 6% Asian, 8% Two or more.
Is Los Osos Middle public or private?
Los Osos Middle is a public K-12 school, overseen by San Luis Coastal Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.