Very Good
#3527 of 9,539 schools in CA
Top 37% in state
Delta Charter Online
School · New Jerusalem Elementary · Lathrop, CA
A New Jerusalem Elementary charter school where students score 21 points below what's typical for similar communities.
31400 South Koster Rd., Lathrop, CA 95330
- Math 16% vs CA 32% (2024)
- Reading 31% vs CA 52% (2024)
- 82.0% 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
View breakdown
View breakdown
View breakdown
Students at Delta Charter Online score 24% proficient, which is below what's typical for similar communities (expected: 44%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
→ SteadyProficiency has held near 24% across the 8-year record (2017–2024).
Show all 6 years by subject
Multi-year averages used by the rating model: math 13% (multi-year average, 2017-2024) · reading/ELA 41% (multi-year average, 2017-2024)
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Based on 14 test records from CA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
53.5%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Delta Charter Online sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries.
Getting around & local context
- Walk 4Car-Dependent
- Bike 29Somewhat Bikeable
- City Safety: High1,741/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (Lathrop), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$118,461
Median home value
$605,100
Median rent
$2,341/mo
College educated
23.9%
Homeownership
83.6%
Poverty rate
8.5%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 95330; this is area context, not an attendance boundary.
Programs & students
Programs & Offerings
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| Delta CharterCharter · enrollment unverified | 7.9 | K–12 | 0.0 mi | 811 | Compare → |
| Delta Home CharterCharter · enrollment unverified | 5.3 | K–12 | 0.0 mi | 235 | Compare → |
| Delta Keys CharterCharter · enrollment unverified | 6.5 | K–12 | 0.0 mi | 125 | Compare → |
| Valley View Charter PrepCharter · enrollment unverified | 7.8 | K–12 | 0.0 mi | 669 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.
New Jerusalem Elementary
- Schools in district
- 6
- Rank in district
- #2 of 5
- District spending per student
- $16,186NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 14.6%Census SAIPE · 2024
Delta Charter Online is listed in New Jerusalem Elementary; a district label does not verify attendance for an address.
About Delta Charter Online
Delta Charter Online is a public school in Lathrop, CA, part of New Jerusalem Elementary, serving approximately 228 students in grades Kindergarten-12th with a 28.5:1 student-teacher ratio. It holds a MySchoolScout rating of 7.0 out of 10 and ranks #3,527 of 9,539 schools in CA. State assessment records show 13% math proficiency (multi-year average, 2017-2024) and 41% reading/ELA proficiency (multi-year average, 2017-2024).
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 ranks #3,527 of 9,539 schools in CA.
What is Delta Charter Online's MySchoolScout rating?
Delta Charter Online has a current MySchoolScout rating of 7.0 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Delta Charter Online?
Based on loaded state assessment records, Delta Charter Online has 13% math proficiency (multi-year average, 2017-2024) and 41% reading/ELA proficiency (multi-year average, 2017-2024).
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.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 12th
- Enrollment
- 228
- Student-Teacher Ratio
- 28.5:1
- Teachers (FTE)
- 8
- Type
- regular
- Setting
- Fringe Rural
- County
- San Joaquin County
- Chronic Absenteeism (SY 2022-23)
- 4.8%
- Phone
- (209) 830-6363
- 4-Year Graduation
- 82.0%
- Area population (ZIP 95330)
- 33,015
- Area average commute
- 43.6 min
- Area median age
- 34.2
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 95330; this does not measure the attendance area.
- Programs (AP/IB, athletics, gifted)
- CRDC via Urban Institute · SY 2021–22 · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: SY 2021–22. A newer release may be available.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2017-2024; directory SY 2023–24
Related reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- 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
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.