High school · Rialto Unified School District

Rialto High

Rialto High is a public high school in San Bernardino serving grades 9–12, with 2,747 students, 23.7 students per teacher. Rialto Unified School District.

School calendar At a glance Directions

Next day off: Wed, Nov 11 · Veterans Day - Offices Closed · All days off

Rialto Unified School District calendar

Key dates

Oct12
Instructional BreakMonday · All dayKey date
Nov4
Elementary School Parent ConferencesWednesday · Nov 4 – Nov 6Key date
Nov9
Elementary School Parent ConferencesMonday · Nov 9 – Nov 10Key date
Nov11
Veterans Day - Offices ClosedWednesday · All dayKey date
Nov12
Elementary School Parent ConferencesThursday · Nov 12 – Nov 13Key date
Nov23
Fall BreakMonday · Nov 23 – Nov 27Key date

Coming up

Oct14
School Board MeetingWednesday · 5:30 PM · 182 E Walnut Ave, Rialto, CA 92376, USA
Oct29
Dia de los Muertos CelebrationThursday · 5:00 PM · 324 N Palm Ave, Rialto, CA 92376, USA
Oct30
Book ManiaFriday · All day
Nov18
School Board MeetingWednesday · 5:30 PM · 182 E Walnut Ave, Rialto, CA 92376, USA
Nov26
Thanksgiving Holiday - Offices ClosedThursday · Nov 26 – Nov 27Key date
Dec9
School Board MeetingWednesday · 5:30 PM · 182 E Walnut Ave, Rialto, CA 92376, USA
Dec21
Winter BreakMonday · Dec 21 – Dec 25Key date
Dec24
Christmas Eve - Offices ClosedThursday · All dayKey date

Last checked Oct 10, 2026, 1:11 AM. Confirm dates with the district ↗. Recurring calendar entries may not appear here.

At a glance

Rialto High by the numbers

As reported to the U.S. Department of Education for 2023–24. Student–teacher ratio is not classroom size.

Grades9–12

Students2,747

Teachers116

Students per teacher23.7

Free or reduced-price lunch87%

School typeRegular School

DistrictRialto Unified School District

Contact

Address, phone and website

595 South Eucalyptus Ave., Rialto 92376

(909) 421-7500

School website ↗Rialto Unified School District website ↗Directions ↗

Nearby

Schools nearby

Elementary school · 0.4 miJ.P. Kelley ElementaryGrades K–5 Elementary school · 2.4 miRamona-Alessandro ElementaryGrades K–6 Middle school · 2.7 miRichardson PREP HI MiddleGrades 6–8 Elementary school · 2.8 miLytle Creek ElementaryGrades K–6 Elementary school · 2.8 miRio Vista ElementaryGrades K–6 Middle school · 2.9 miMartin Luther King Jr. MiddleGrades 7–8

Questions

About Rialto High

What grades does Rialto High have?

Rialto High serves grades 9–12.

How many students go to Rialto High?

2,747 students, about 23.7 per teacher, as reported to the U.S. Department of Education for 2023–24.

What school district is Rialto High in?

Rialto Unified School District. District information and the school calendar are on the district website.

Where is Rialto High?

595 South Eucalyptus Ave., Rialto 92376. Phone (909) 421-7500.

Source: U.S. Department of Education, National Center for Education Statistics, Common Core of Data (2023–24). Contact the school or district to confirm enrollment boundaries, schedules and programs.