Below Average
#8154 of 9,533 schools in CA
One.charter
School · one.Charter District
PO Box 213030, Stockton, CA 95213
Enrollment
1,149
Student-Teacher
28.7:1
Score
4.6
Grades
Kindergarten – 12th
Enrollment
1,149
Student-Teacher
28.7:1
Score
4.6
Grades
Kindergarten – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Stockton
#88 of 109
public schools
California schools
#386 of 475
Academic growth
7.9 / 10
Very strong
About One.charter
one.Charter serves 1,149 students in grades kindergarten through 12 as an alternative charter school in Stockton, California. With 40 full-time equivalent teachers, the school maintains a student-teacher ratio of 28.7:1, providing educational services across all grade levels in a single location. As an alternative school, one.Charter focuses on serving students who may benefit from non-traditional educational approaches.
The school currently has significant room for academic growth, with 4% of students performing proficiently in English Language Arts and 6% achieving proficiency in mathematics across all grade levels. These results place the school among those working to improve student outcomes in California's educational landscape. The comprehensive K-12 structure allows students to remain within the same school community throughout their entire educational journey, potentially providing consistency and continuity in their learning experience.
As a charter school, one.Charter operates with flexibility in its educational approach while serving the diverse needs of its student population. Located in Stockton, a large city in San Joaquin County, the school serves families seeking alternative educational options in California's Central Valley region.
What Parents Should Know
While current test scores at One.charter are below average, the school shows strong growth metrics — meaning students are making above-average progress year over year. This upward trajectory can be a positive indicator for families who value a school's ability to help students improve, even if absolute scores haven't caught up yet.
The student-teacher ratio at One.charter is 28.7:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
One.charter is a charter school — a publicly funded school that operates with more autonomy than traditional district schools. Charter schools often have distinct educational models or specialties. Parents should understand the school's specific mission, enrollment process, and how its approach differs from nearby district options.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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One.charter — Students at One.charter score 5% proficient, which is below what's typical for similar communities (expected: 27%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
83%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 8 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.9/10.
How One.charter Compares
See how One.charter performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has improved from 2.5% (2019) to 5.88% (2024). Reading/ELA proficiency has declined from 7.5% (2019) to 3.7% (2024).
Location
PO Box 213030, Stockton, CA 95213
Nearby Alternatives
Families considering One.charter may also want to explore other schools in the area. John F. Cruikshank Jr. (rated 7.9/10), which scores notably higher. Another option is San Joaquin County Special Education (rated 6.4/10), which scores notably higher. Additionally, San Joaquin County Community (rated 6.1/10), which scores notably higher. For more schools in Stockton, see our Stockton schools guide .
Nearby Schools
20 within 3.0 mi| School | Distance | Rating |
|---|---|---|
| San Joaquin County Special Education Stockton | 0.0 mi | 6.4 |
| John F. Cruikshank Jr. Stockton | 0.0 mi | 7.9 |
| San Joaquin County Community Stockton | 0.0 mi | 6.1 |
| Venture Academy Stockton | 0.1 mi | 4.3 |
| Sacred CG Family Academy Stockton | 1.4 mi | — |
| Nightingale Charter Stockton | 1.4 mi | 6.0 |
| Monroe Elementary Stockton | 1.8 mi | 4.7 |
| Alexander Hamilton Elementary Stockton | 1.8 mi | 5.9 |
| Montezuma Elementary Stockton | 2.1 mi | 6.1 |
| Van Buren Elementary Stockton | 2.0 mi | 5.3 |
| Aspire Stockton 6-12 Secondary Academy Stockton | 2.1 mi | 5.5 |
| Aspire Rosa Parks Academy Oakland | 2.3 mi | 5.0 |
| Edward C. Merlo Institute of Environmental Studies Stockton | 2.5 mi | 7.6 |
| French Camp Elementary Manteca | 2.6 mi | 4.5 |
| Wilhelmina Henry Elementary Stockton | 3.1 mi | 4.8 |
| Roosevelt Elementary Stockton | 3.2 mi | 6.0 |
| CENTRAL VALLEY CHRISTIAN ACADEMY Manteca | 3.5 mi | 5.0 |
| Taft Elementary Stockton | 2.9 mi | 7.2 |
| King Elementary Stockton | 3.5 mi | 6.2 |
| McKinley Elementary Stockton | 3.0 mi | 4.3 |
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| California Virtual Academy at Sutter Simi Valley, CA | 4.6 |
| Compass Charter School of Yolo Thousand Oaks, CA | 4.6 |
| Da Vinci Connect El Segundo, CA | 4.6 |
| Forest Charter Nevada City, CA | 4.6 |
| ONTARIO CHRISTIAN SCHOOL Ontario, CA | 4.5 |
| Bostonia Global El Cajon, CA | 4.7 |
Frequently Asked Questions
Common questions about One.charter
What grades does One.charter serve?
One.charter serves students in grades Kindergarten through 12th.
How many students attend One.charter?
One.charter has an enrollment of approximately 1,149 students.
What is the student-teacher ratio at One.charter?
The student-teacher ratio at One.charter is 28.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does One.charter rank in CA?
One.charter is ranked #8154 out of 9,533 schools in CA.
What is One.charter's MySchoolScout rating?
One.charter has a composite rating of 4.6 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at One.charter?
Based on the most recent state assessment data, One.charter has 4.9% math proficiency and 7.5% reading/ELA proficiency.
Is One.charter a charter school?
Yes, One.charter is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is One.charter a Title I school?
No, One.charter is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for One.charter?
83.0% of students at One.charter qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
- Walk Score
- 35 Car-Dependent
- Transit Score
- 28 Some Transit
- Bike Score
- 36 Somewhat Bikeable
- City Safety
- High (3,836/100K)
Powered by 
FBI UCR 2024. City-level (Stockton). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 12th
- Enrollment
- 1,149
- Student-Teacher Ratio
- 28.7:1
- Teachers (FTE)
- 40
- Free/Reduced Lunch
- 83.0%
- Type
- alternative
- Setting
- Large City
- County
- San Joaquin County
- Phone
- (209) 468-4847
- Data Year
- 2023–2024
Resources & Links
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
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