Enrollment
241
High
DISTRICT 109 · STATE 838
SCHOOL COMMUNITY·SAN LUIS OBISPO COUNTY OFFICE OF EDUCATION·NCES 069103211281
Grizzly ChalleNGe Charter
721 Mendocino Ave. Camp San Luis Obispo, San Luis Obispo, CA 93405 · (805) 782-6882 · San Luis Obispo County
GRADES 10–12HIGH41-RURALCHARTERTITLE IREGULAR SCHOOL241 STUDENTS
F
allk12 Grade
Scored higher than 0% of California public high schools
- FTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- FBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- C-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 high schools
Student : Teacher
16.3:1
15 FTE teachers
DISTRICT 13.6:1 · STATE 18.2:1
Free / Reduced Lunch
85%
204 students
DISTRICT 81% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 10 | 14 | 6% |
| Grade 11 | 118 | 49% |
| Grade 12 | 109 | 45% |
Student demographics
21%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 34% · 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
11.4%
CA avg 49.1% . -5.6pp since 2014
Math
1.3%
CA avg 37.7% . +0.3pp since 2014
What this means: On the CAASPP, California's statewide test, about 11 of every 100 students at this school read and write at grade level and about 1 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are down about 6 points since 2014, while math scores have held steady.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 2.5% | 8.9% | 44.3% | 44.3% |
| Math | 1.3% | 0.0% | 7.7% | 91.0% |
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 | 11.4% | 1.3% |
| 2023-24 | 15.3% | 0.0% |
| 2022-23 | 26.4% | 4.2% |
| 2021-22 | 21.9% | 0.0% |
| 2020-21 | 15.3% | 0.0% |
| 2018-19 | 16.9% | 0.0% |
| 2017-18 | 5.6% | 0.0% |
| 2016-17 | 8.3% | 0.9% |
| 2015-16 | 11.0% | 1.0% |
| 2014-15 | 17.0% | 1.0% |
% 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
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
7.0%
composite math + reading, all grades
Predicted
29.9%
based on CA schools with similar FRL share
Beats by
-22.9pp
below demographic expectation
What this means: About 7% of students here test proficient in math and reading, below the roughly 30% 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 Grizzly ChalleNGe Charter
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Grizzly ChalleNGe Charter this school | 241 | 84.6% | 7.0% |
| Calipatria High Calipatria | 345 | 83.8% | 30.4% |
| Alliance Leichtman-Levine Family Foundation Env Sci High Los Angeles | 296 | 87.2% | N/A |
| John Henry High Richmond | 333 | 86.2% | N/A |
| Everest Public High Redwood City | 224 | 81.7% | N/A |
| Strathmore High Strathmore | 286 | 88.8% | 25.5% |
Matched among California high 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 Grizzly ChalleNGe Charter ranks
Among high schools| Measure | This school | In California | In San Luis Obispo County |
|---|---|---|---|
| State test proficiency ranked highest first | 7.0% | #1,046 of 1,052 | #10 of 10 |
| Math proficiency ranked highest first | 1.3% | #1,052 of 1,056 ▲ 4 | #10 of 10 no change |
| Reading proficiency ranked highest first | 11.4% | #1,048 of 1,056 ▼ 4 | #10 of 10 no change |
| 3-year test score change ranked biggest drop first | -4.6pp | #144 of 1,044 | #3 of 10 |
| Enrollment ranked largest first | 241 | #1,294 of 2,093 | #9 of 22 |
| Students per teacher ranked fewest first | 16.3:1 | #167 of 1,352 | #1 of 9 |
| Diversity index ranked most diverse first | 20.7% | #1,090 of 1,351 | #9 of 9 |
| Free and reduced lunch ranked highest share first | 84.6% | #477 of 1,575 | #2 of 13 |
| Enrollment change since 2017-18 ranked fastest growth first | +0.4% | #317 of 327 | N/A |
Ranked against other public high 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.
7-year change
SY 2017-18 vs SY 2024-25Enrollment
241
+1 (+0%) vs 2017
Student : Teacher
16.3:1
was 16.8:1
% White
6%
was 9%
% Hispanic
89%
was 88%
% Black
2%
was 2%
% Asian
2%
was 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 | 241 | 14.8 | 16.3:1 | 85% (204) |
| 2023-24 | 225 | 14.8 | 15.2:1 | 86% (193) |
| 2022-23 | 212 | 13.5 | 15.7:1 | 80% (169) |
| 2017-18 | 240 | 14.3 | 16.8:1 | 83% (199) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Grizzly ChalleNGe Charter.
Since 2017-18: students unchanged (240 to 241); teachers up 3% (14.3 to 14.8).
About Grizzly ChalleNGe Charter
Grizzly ChalleNGe Charter is a very small high school in San Luis Obispo County Office of Education, located in San Luis Obispo, California. Students in grades 10 through 12 make up the school's enrollment of 241 students. By comparison, high schools in California enroll about 838 students on average.
Enrollment across the 4 schools in San Luis Obispo County Office of Education totals 345 students.
A large majority of enrollment at Grizzly ChalleNGe Charter is Hispanic, at 89%. Beyond that, enrollment is 6% White and 2% Black. The Hispanic share of the county population is lower, at 25%. The diversity index for Grizzly ChalleNGe Charter is 21%. For US public schools as a whole it is 70%.
Grizzly ChalleNGe Charter has a student-to-teacher ratio of 16.3:1, with 14.8 full-time-equivalent teachers. Compared with the 18.2:1 average for high schools in California, this school's ratio is lower. The school has 85% of students eligible for free or reduced-price lunch. The average for public schools in San Luis Obispo County is 54%.
Grizzly ChalleNGe Charter earns an F on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 0% of California public high schools.
On a poverty-adjusted basis, Grizzly ChalleNGe Charter is in the bottom 10% of California schools: 7.0% actual against 29.9% predicted.
In the wider San Luis Obispo County area, median household income comes to about $97,446, roughly 40% of adults have a four-year degree or more, and about 6% of residents live below the federal poverty line. San Luis Obispo County's 83 public schools enroll about 33,339 students and include Grizzly ChalleNGe Charter.
A public school about 0.6 miles away, San Luis Obispo County Juvenile Court, is the closest to Grizzly ChalleNGe Charter. The count of other public schools within five miles is at least 8. In a group of 6 nearby schools with scores, Grizzly ChalleNGe Charter ranks 6th on average proficiency.
Grizzly ChalleNGe Charter has an NCES locale of Rural: Fringe. NCES lists Grizzly ChalleNGe Charter as a charter school.
The school's size has been steady, with 240 students in 2017-18 and 241 in 2024-25.
People who know Grizzly ChalleNGe Charter can post here about homework, tutoring, and testing dates. Teachers and staff are welcome to share updates too.
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 Obispo County Office of Education
- San Luis Obispo County CommunityHigh · 76 students
- San Luis County Special EducationCombined · 17 students
- San Luis Obispo County Juvenile CourtHigh · 11 students
Other schools in San Luis Obispo
- San Luis Obispo HighHigh · 1,678 students
- Laguna MiddleMiddle · 780 students
- C L Smith ElementaryElementary · 528 students
- Los Ranchos ElementaryElementary · 521 students
- Pacheco ElementaryElementary · 488 students
- Hawthorne ElementaryElementary · 437 students
Nearby schools
- San Luis Obispo County Juvenile Court0.6 mi · 11
- San Luis County Special Education1.0 mi · 17
- San Luis Obispo County Community1.2 mi · 76
- Bishop's Peak Elementary3.1 mi · 358
- Pacheco Elementary3.6 mi · 488
- Laguna Middle4.6 mi · 780
Frequently asked questions
About Grizzly ChalleNGe CharterWhat is the total enrollment at Grizzly ChalleNGe Charter?
Grizzly ChalleNGe Charter enrolls approximately 241 students in grades 10-12.
What grades does Grizzly ChalleNGe Charter serve?
Grizzly ChalleNGe Charter serves grades 10-12.
How many students per teacher at Grizzly ChalleNGe Charter?
Approximately 16.3:1 students per teacher at Grizzly ChalleNGe Charter.
How diverse is Grizzly ChalleNGe Charter?
Grizzly ChalleNGe Charter reports a student body of 6% White, 89% Hispanic, 2% Black, 2% Asian, 1% Two or more.
Is Grizzly ChalleNGe Charter public or private?
Grizzly ChalleNGe Charter is a public K-12 school operated as a charter, overseen by San Luis Obispo County Office of Education.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.