For the 2025-26 school year, there are 6 public charter schools serving 3,137 students in 95330, CA.
The top ranked public charter schools in 95330, CA are River Islands Technology Academy Ii, Nextgeneration Steam Academy and Delta Charter Online. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public charter schools in zipcode 95330 have an average math proficiency score of 43% (versus the California public charter school average of 32%), and reading proficiency score of 56% (versus the 48% statewide average). Charter schools in 95330, CA have an average ranking of 8/10, which is in the top 30% of California public charter schools.
Minority enrollment is 88% of the student body (majority Asian), which is more than the California public charter school average of 75% (majority Hispanic).
Best 95330, CA Public Charter Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
River Islands Technology Academy Ii
Charter School
(Math: 51% | Reading: 65%)
Rank:
Rank:
9/
Top 20%10
1175 Marina Dr.
Lathrop, CA 95330
(209) 229-4700
Lathrop, CA 95330
(209) 229-4700
Gr: K-8 | 975 students Student-teacher ratio: 25:1 Minority enrollment: 86%
Rank: #22.
Nextgeneration Steam Academy
Charter School
(Math: 39% | Reading: 51%)
Rank:
Rank:
7/
Top 50%10
18001 Commercial St.
Lathrop, CA 95330
(209) 229-4736
Lathrop, CA 95330
(209) 229-4736
Gr: K-8 | 726 students Student-teacher ratio: 24:1 Minority enrollment: 88%
Rank: #33.
Delta Charter Online
Charter School
(Math: 10-14% | Reading: 35-39%)
Rank:
Rank:
3/
Bottom 50%10
31400 South Koster Rd.
Lathrop, CA 95330
(209) 830-6363
Lathrop, CA 95330
(209) 830-6363
Gr: K-12 | 228 students Student-teacher ratio: 29:1 Minority enrollment: 75%
Rank: #44.
Delta Keys Charter
Charter School
(Math: ≤10% | Reading: 11-19%)
Rank:
Rank:
1/
Bottom 50%10
31400 South Koster Rd.
Lathrop, CA 95330
(209) 830-6363
Lathrop, CA 95330
(209) 830-6363
Gr: K-12 | 125 students Student-teacher ratio: 21:1 Minority enrollment: 88%
Rank: n/an/a
Epic Academy
Charter School
2760 Penrose Ln.
Lathrop, CA 95330
(209) 717-6700
Lathrop, CA 95330
(209) 717-6700
Gr: K-8 | 805 students Student-teacher ratio: 26:1 Minority enrollment: 95%
Rank: n/an/a
River Islands High School
Charter School
2760 Penrose Ln.
Lathrop, CA 95330
(209) 717-6715
Lathrop, CA 95330
(209) 717-6715
Gr: 9-12 | 278 students Student-teacher ratio: 17:1 Minority enrollment: 89%
Frequently Asked Questions
What are the top ranked public charter schools in 95330, CA?
The top ranked public charter schools in 95330, CA include River Islands Technology Academy Ii, Nextgeneration Steam Academy and Delta Charter Online.
How many public charter schools are located in 95330?
6 public charter schools are located in 95330.
What is the racial composition of students in 95330?
95330 public charter schools minority enrollment is 88% of the student body (majority Asian), which is more than the California public charter schools average of 75% (majority Hispanic).
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