- Enrollment
- 76
- Students per teacher
- 19:1
- Resource Index
- 32/100
High school (grades 9-12) · San Luis Obispo, CA
Grizzly Challenge Charter
Federal NCES profile for Grizzly Challenge Charter, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 50/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 069103211281Charter school
👥 S:T ratio 26
🌟 Gifted program 30
🎓 Counselors 76
📋 Attendance 68
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Grizzly Challenge Charter earns 50/100 on the Resource Investment Index, with class sizes smaller than 76% of California schools. It is also less racially and ethnically mixed than most California schools.
- #1 of 3
- high schools in San Luis Obispo · Resource Index
- 50
- Resource Index · Higher
- 18.5:1
- small classes for California
- 69.3%
- free-lunch eligible
Grizzly Challenge Charter has class sizes smaller than 76% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Grizzly Challenge Charter ranks #1 of 3 high schools in San Luis Obispo, CA.
School address
District: San Luis Obispo County Office of Education · California
NCES ID 069103211281 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+13 students YoY
Grizzly Challenge Charter grew from 212 students in 2022-23 to 225 in 2023-24 (+6.1%).
Teacher FTE added 13.5 → 14.8 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+13 students YoY 069103211281 · San Luis Obispo, CA High · SMALL · CHARTER
241 enr · 18.5:1 · 69.3% lunch · RII 50
Nearest enrollment peer: San Luis Obispo County Community (76 students)
Grizzly Challenge Charter grew from 212 students in 2022-23 to 225 in 2023-24 (+6.1%). Teacher FTE added 13.5 → 14.8 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Grizzly Challenge Charter in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Grizzly Challenge Charter
241 students
- San Luis Obisp 76
San Luis Obispo County Community
76 students
- San Luis Count 17
San Luis County Special Education
17 students
- San Luis Obisp 11
San Luis Obispo County Juvenile Court
11 students
What this shows Grizzly Challenge Charter reports 241 students on the CCD universe file.
How Grizzly Challenge Charter compares
Grizzly Challenge Charter is a growing campus on CCD: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.5:1 | ▼ 14% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 69.3% | ▲ 25% | 55.5% | 51.7% |
| Enrollment | 241 | top 80% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.5:1
Leaner classes than 22% of US schools, heavier class loads than most.
241
Bigger than 24% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
69.3%
free-lunch eligible
- 25% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
18.5:1
students per teacher
- 14% below state mean
Top 24% in California - lower ratio than 76% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
12.9%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Support staff
Counselors2.0 FTE
Per 121 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 88.8%
White 6.2%
African American 2.1%
Asian 1.7%
Two or More 1.2%
Largest group: Hispanic or Latino at 88.8% of enrollment.
Student-body diversity index 20.7/100
Simpson diversity index - at 20.7, Grizzly Challenge Charter is less mixed than the California school average of 46.0.
Programs
AP program Not offered
How Grizzly Challenge Charter Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| San Luis Obispo County Community | Smaller | Higher economic need | Similar S:T ratio |
| San Luis County Special Education | Smaller | Higher economic need | Lower S:T ratio |
| San Luis Obispo County Juvenile Court | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Grizzly Challenge Charter's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 17
- Students per teacher
- 4.3:1
- Resource Index
- 68/100
- Enrollment
- 11
- Students per teacher
- 5.5:1
- Resource Index
- 63/100
Similar high schools in San Luis Obispo
2 comparable high schools (grades 9-12) serving the same city.
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~241 students)
Frequently asked questions about Grizzly Challenge Charter
How many students attend Grizzly Challenge Charter?
Grizzly Challenge Charter has 241 students enrolled. It is a high school in San Luis Obispo, CA. CCD year-over-year: 212 (2022-23) → 225 (2023-24), up 13.
What is the student-teacher ratio at Grizzly Challenge Charter?
The student-teacher ratio at Grizzly Challenge Charter is 18.5:1, which is 14% lower than the California average of 21.5:1 and 18% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Grizzly Challenge Charter?
69.3% of students at Grizzly Challenge Charter are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Grizzly Challenge Charter?
The largest demographic group at Grizzly Challenge Charter is Hispanic or Latino at 88.8% of enrollment, in San Luis Obispo, CA.
What is the Resource Investment Index for Grizzly Challenge Charter?
Grizzly Challenge Charter has a Resource Investment Index of 50/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Grizzly Challenge Charter rank among high schools in San Luis Obispo?
By Resource Investment Index, Grizzly Challenge Charter ranks #1 of 3 high schools in San Luis Obispo, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in San Luis Obispo on the city page.
What other schools are in San Luis Obispo County Office of Education?
Besides Grizzly Challenge Charter, San Luis Obispo County Office of Education also operates San Luis Obispo County Community (76 students), San Luis County Special Education (17 students), and San Luis Obispo County Juvenile Court (11 students). See the San Luis Obispo County Office of Education district page for the complete list.