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
Recent Articles
Can Your Child Get Into School Clubs and Activities?
Discover whether your child can access advertised school clubs and activities, including enrollment limits, tryouts, fees, transportation, scheduling conflicts, and essential questions parents should ask before choosing schools today.
Who Supervises Students When Their Teacher Is Out?
Discover who supervises students when regular teachers are absent, how schools arrange classroom coverage, what qualifications substitutes need, and which questions parents should ask about safety and learning continuity.
When the School Nurse Isn't There: Parent Guide
Learn what happens when school nurses are absent, how public schools handle medications and emergencies, and which essential questions parents should ask to protect their children's health and safety daily.