Welcome to Rio San Gabriel

Our mission is to see students reach their fullest potential. We believe all children can and will learn. We maintain high expectations and promote academic excellence. We will create a supportive school environment where all are welcomed, respected, and trusted. We will foster a positive school culture.

What We Offer

Character Counts! Commission
Cognitively Guided Instruction
Tech Team
Family Community Events
21st Century Learning
GATE Program
GATE Program
Extended Day Tutoring
Before, Lunch & After School Tutoring
Project Lead The Way
Project Lead the Way
English Language Development
English Language Development
DFEO: Before & After School Enrichment
Innovation Lab
Innovation Lab
apple logo
Apple Distinguished School
group of RSG students posing with a trophy

Why Become a Mustang?

Take a look at our school overview to see what Rio San Gabriel has to offer.

small image of the overview document

How to Enroll Online

We look forward to enrolling your student(s) and providing them a 21st-century education that ensures they are college and career ready, globally competitive and citizens of strong character. So many wonderful experiences await!


If you have additional questions,
please contact the office:
8:00 am – 3:30 pm
(562) 904-3567

Step 1

Parents/Guardians will need a valid email address to begin. If you do not have an email account, please create an email account from your preferred free email service provider.

Step 2

See a list of the required documents you will need to upload online to complete the enrollment process.

Step 3

Complete the Pre-Enrollment screens. During the Pre-Enrollment, you will need to upload required registration documents (Identification Card, birth certificate, utility bill, etc.).

Do you live outside the district boundaries?
Apply for a permit.