Charter SchoolOtherMostly virtual

Delta Keys Charter

31400 South Koster Rd., Tracy, CA 95304

DSchola Grade
Grades
K–12
Other
Students
125
Enrolled 2024–25
Students per teacher
17.8 : 1
Full-time teachers
District
New Jerusalem Elementary
San Joaquin County

Schola Grade D · Below average

Letter grade (A–F) · compared with 262 California K–8, K–12 and other combined schools · How we grade
Test scores10% proficient in math & reading
4thpercentile
Equity10% of low-income students proficient
7thpercentile
Attendance8% chronically absent
68thpercentile
Graduation rate47% graduate in 4 years
8thpercentile
Class size17.8 students per teacher
72ndpercentile

Percentiles compare this school with other California K–8, K–12 and other combined schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Delta Keys Charter

Delta Keys Charter is a charter school in Tracy, California, serving grades K–12. It is part of New Jerusalem Elementary. The school is located in a rural area near a town in San Joaquin County.

In the 2024–25 school year, 125 students were enrolled, with about 17.8 students for every full-time teacher. As a charter school, it is publicly funded and tuition-free, but operates independently of the local district under a charter from New Jerusalem Elementary. The school is mostly virtual. Its Schola Grade is D (below average), compared with 262 California K–8, K–12 and other combined schools.

Grades & enrollment

Students per grade, 2024–25Grades K–12

Location & nearby schools

31400 South Koster Rd.
Tracy, CA 95304
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School details

Type
Charter School · What this means
Level
Other
Grades offered
K–12
Enrollment (2024–25)
125 students
Students per teacher
17.8 to 1
Charter school
Yes
Charter authorizer
New Jerusalem Elementary
Magnet school
No
Virtual learning
Mostly virtual
Locale
Rural — Fringe
School district
New Jerusalem Elementary
County
San Joaquin County
NCES school ID
062703014175

Schools near Delta Keys Charter

All 42 schools in Tracy →

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.