Average
#4551 of 9,539 schools in CA
Top 48% in state
Delta Keys Charter
School · New Jerusalem Elementary · Lathrop, CA
A New Jerusalem Elementary charter school where students score 17 points below what's typical for similar communities.
31400 South Koster Rd., Lathrop, CA 95330
- Math 13% vs CA 32% (2024)
- Reading 16% vs CA 52% (2024)
- 62.0% 4-year graduation
Academics
Full Profile · 4/4 metricsView breakdown
View breakdown
View breakdown
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Students at Delta Keys Charter score 14% proficient, which is below what's typical for similar communities (expected: 32%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
↑ RecoveringProficiency declined earlier in the 8-year record (2017–2024), then recovered 7 points since 2019, reaching 14% in 2024.
Show all 6 years by subject
Multi-year averages used by the rating model: math 6% (multi-year average, 2017-2024) · reading/ELA 14% (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
76%
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 Keys Charter 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.
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 Charter OnlineCharter · enrollment unverified | 7.0 | K–12 | 0.0 mi | 228 | Compare → |
| Delta Home CharterCharter · enrollment unverified | 5.3 | K–12 | 0.0 mi | 235 | 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
- #3 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 Keys Charter is listed in New Jerusalem Elementary; a district label does not verify attendance for an address.
About Delta Keys Charter
Delta Keys Charter is a public school in Lathrop, CA, part of New Jerusalem Elementary, serving approximately 125 students in grades Kindergarten-12th with a 20.8:1 student-teacher ratio. It holds a MySchoolScout rating of 6.5 out of 10 and ranks #4,551 of 9,539 schools in CA. State assessment records show 6% math proficiency (multi-year average, 2017-2024) and 14% reading/ELA proficiency (multi-year average, 2017-2024).
Frequently asked questions
Common questions about Delta Keys Charter
What grades does Delta Keys Charter serve?
Delta Keys Charter serves students in grades Kindergarten through 12th.
How many students attend Delta Keys Charter?
Delta Keys Charter has an enrollment of approximately 125 students.
What is the student-teacher ratio at Delta Keys Charter?
The student-teacher ratio at Delta Keys Charter is 20.8:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Delta Keys Charter rank in CA?
Delta Keys Charter ranks #4,551 of 9,539 schools in CA.
What is Delta Keys Charter's MySchoolScout rating?
Delta Keys Charter has a current MySchoolScout rating of 6.5 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 Keys Charter?
Based on loaded state assessment records, Delta Keys Charter has 6% math proficiency (multi-year average, 2017-2024) and 14% reading/ELA proficiency (multi-year average, 2017-2024).
Is Delta Keys Charter a charter school?
Yes, Delta Keys Charter is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.
Is Delta Keys Charter a Title I school?
No, Delta Keys Charter is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Delta Keys Charter?
76.0% of students at Delta Keys 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.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 12th
- Enrollment
- 125
- Student-Teacher Ratio
- 20.8:1
- Teachers (FTE)
- 6
- Type
- regular
- Setting
- Fringe Rural
- County
- San Joaquin County
- Chronic Absenteeism (SY 2022-23)
- 8.0%
- Phone
- (209) 830-6363
- 4-Year Graduation
- 62.0%
- 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.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2017-2024; directory SY 2023–24
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