For the 2026-27 school year, there are 4 public high schools serving 2,405 students in Lathrop, CA.
The top-ranked public high schools in Lathrop, CA are Lathrop High School, Delta Charter Online and Delta Keys Charter. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Lathrop, CA public high schools have an average math proficiency score of 19% (versus the California public high school average of 28%), and reading proficiency score of 52% (versus the 51% statewide average). High schools in Lathrop have an average ranking of 5/10, which is in the bottom 50% of California public high schools.
Lathrop, CA public high school have a Graduation Rate of 84%, which is less than the California average of 86%.
The school with highest graduation rate is Delta Charter Online, with 90-94% graduation rate. Read more about public school graduation rate statistics in California or national school graduation rate statistics.
Minority enrollment is 89% of the student body (majority Hispanic), which is more than the California public high school average of 79% (majority Hispanic).
Best Public High Schools in Lathrop, CA (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Lathrop High School
(Math: 22% | Reading: 60%)
Rank:
Rank:
6/
Top 50%10
647 Spartan Way
Lathrop, CA 95330
(209) 938-6350
Lathrop, CA 95330
(209) 938-6350
Gr: 9-12 | 1,486 students Student-teacher ratio: 22:1 Minority enrollment: 91%
Rank: #22.
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 | 282 students Student-teacher ratio: 24:1 Minority enrollment: 74%
Rank: #33.
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: 18:1 Minority enrollment: 86%
Rank: n/an/a
River Islands High School
Charter School
16601 Riptide Way
Lathrop, CA 95330
(209) 717-6715
Lathrop, CA 95330
(209) 717-6715
Gr: 9-12 | 512 students Student-teacher ratio: 18:1 Minority enrollment: 92%
Frequently Asked Questions
What are the top-ranked public high schools in Lathrop, CA?
The top-ranked public high schools in Lathrop, CA include Lathrop High School, Delta Charter Online and Delta Keys Charter.
How many public high schools are located in Lathrop?
4 public high schools are located in Lathrop.
What is the racial composition of students in Lathrop?
Lathrop public high schools minority enrollment is 89% of the student body (majority Hispanic), which is more than the California public high schools average of 79% (majority Hispanic).
Which public high schools in Lathrop are often viewed compared to one another?
Popular comparisons of public high schools in Lathrop include: River Islands High School vs. Lathrop High School, Lathrop High School vs. River Islands High School
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