Average
#7617 of 9,533 schools in CA
Delta Charter Online
School · New Jerusalem Elementary
31400 South Koster Rd., Lathrop, CA 95330
Enrollment
228
Student-Teacher
28.5:1
Score
5.0
Grades
Kindergarten – 12th
Enrollment
228
Student-Teacher
28.5:1
Score
5.0
Grades
Kindergarten – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Lathrop
#5 of 5
public schools
California schools
#346 of 475
In district
#4 of 5
New Jerusalem Elementary
Academic growth
7.4 / 10
Strong
About Delta Charter Online
Delta Charter Online is a charter school located in Lathrop, California, offering education from kindergarten through twelfth grade. With an enrollment of 228 students and a student-teacher ratio of 28.5:1, Delta Charter Online provides personalized attention within its rural setting near the town. The school has eight full-time equivalent teachers dedicated to supporting students across all grade levels.
Delta Charter Online focuses on providing a charter school experience that aims to cater to diverse learning needs in a small community environment. While the MySchoolScout rating of 3.6 out of 10 and state ranking of #7673 indicate there is room for academic growth, Delta Charter Online continues to prioritize student development and engagement. On average, about 40% of students are proficient or above in ELA/reading, while only 14% meet proficiency standards in math.
Delta Charter Online serves a community situated in a rural area near Lathrop, fostering a close-knit environment where families know each other well.
What Parents Should Know
While current test scores at Delta Charter Online 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 Delta Charter Online is 28.5:1, 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.
Delta Charter Online 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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Delta Charter Online — Students at Delta Charter Online score 24% proficient, which is below what's typical for similar communities (expected: 45%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
53.5%
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: 7.4/10.
How Delta Charter Online Compares
See how Delta Charter Online performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has improved from 5% (2019) to 16.16% (2024). Reading/ELA proficiency has declined from 44.5% (2019) to 31.31% (2024).
Location
31400 South Koster Rd., Lathrop, CA 95330
Nearby Alternatives
Families considering Delta Charter Online may also want to explore other schools in the area. Delta Charter (rated 7.1/10, in nearby Tracy), which scores notably higher. Another option is Valley View Charter Prep (rated 6.9/10, in nearby Sacramento), which scores notably higher. Additionally, Delta Keys Charter (rated 6.2/10), which scores notably higher. For more schools in Lathrop, see our Lathrop schools guide .
Nearby Schools
20 within 7.3 mi| School | Distance | Rating |
|---|---|---|
| Valley View Charter Prep Sacramento | 0.0 mi | 6.9 |
| New Jerusalem Elementary Tracy | 0.0 mi | — |
| Delta Charter Tracy | 0.0 mi | 7.1 |
| New Jerusalem Tracy | 0.0 mi | 4.1 |
| Delta Home Charter Tracy | 0.0 mi | 5.7 |
| Delta Keys Charter Lathrop | 0.0 mi | 6.2 |
| Rising Sun Patterson | 4.4 mi | — |
| Jefferson Tracy | 4.4 mi | 8.0 |
| Tom Hawkins Elementary Tracy | 5.8 mi | 6.8 |
| Banta Charter Tracy | 6.7 mi | 3.5 |
| Banta Elementary Tracy | 6.7 mi | 5.5 |
| MONTESSORI ELEMENTARY & MIDDLE SCHOOL OF TRACY Tracy | 6.1 mi | 7.1 |
| Louis A. Bohn Elementary Tracy | 6.7 mi | 7.4 |
| Gladys Poet-Christian Elementary Tracy | 6.7 mi | 4.0 |
| Grace Mennonite School Winton | 7.0 mi | — |
| Tracy High Tracy | 7.3 mi | 6.1 |
| Monticello Elementary Tracy | 6.9 mi | 7.3 |
| Nile Garden Elementary Manteca | 7.6 mi | 4.7 |
| Anthony C. Traina Elementary Tracy | 6.8 mi | 6.7 |
| South/West Park Elementary Tracy | 7.3 mi | 8.2 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 95330 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$118,461
Median Home Value
$605,100
Median Rent
$2,341/mo
Population
33,015
College Educated
23.9%
Homeownership
83.6%
Avg Commute
43.6 min
Poverty Rate
8.5%
Median Age
34.2
Community Profile
The community surrounding Delta Charter Online has a median household income of $118,461. It is a community where 24% of adults hold a bachelor's degree or higher. The median home value in the area is $605,100, with a median rent of $2,341/month. The local poverty rate of 8.5% is relatively low. The average commute in the area is 44 minutes, which is above the national average. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| CALEXICO MISSION SCHOOL Calexico, CA | 5.0 |
| Mountain Valley Academy Ramona, CA | 5.0 |
| TRINITY CHRISTIAN SCHOOL Sacramento, CA | 5.0 |
| eCademy Charter at Crane Turlock, CA | 5.0 |
| California School for the Deaf-Fremont Fremont, CA | 5.1 |
| Parkview Placentia, CA | 4.9 |
Frequently Asked Questions
Common questions about Delta Charter Online
What grades does Delta Charter Online serve?
Delta Charter Online serves students in grades Kindergarten through 12th.
How many students attend Delta Charter Online?
Delta Charter Online has an enrollment of approximately 228 students.
What is the student-teacher ratio at Delta Charter Online?
The student-teacher ratio at Delta Charter Online is 28.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Delta Charter Online rank in CA?
Delta Charter Online is ranked #7617 out of 9,533 schools in CA.
What is Delta Charter Online's MySchoolScout rating?
Delta Charter Online has a composite rating of 5.0 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 Delta Charter Online?
Based on the most recent state assessment data, Delta Charter Online has 13.6% math proficiency and 39.8% reading/ELA proficiency.
Is Delta Charter Online a charter school?
Yes, Delta Charter Online is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Delta Charter Online a Title I school?
No, Delta Charter Online is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Delta Charter Online?
53.5% of students at Delta Charter Online 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
- City Safety
- High (1,741/100K)
FBI UCR 2024. City-level (Lathrop). Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Kindergarten – 12th
- Enrollment
- 228
- Student-Teacher Ratio
- 28.5:1
- Teachers (FTE)
- 8
- Free/Reduced Lunch
- 53.5%
- Type
- regular
- Setting
- Fringe Rural
- County
- San Joaquin County
- Phone
- (209) 830-6363
- Data Year
- 2023–2024
Resources & Links
District
New Jerusalem Elementary- District Enrollment
- 1,643
- Schools in District
- 6
- Per-Pupil Spending
- $16,186
- District Rank
- #4 of 5
Other Schools in This District
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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