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Rancho Cucamonga Middle School

Home of the Lions

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A black and white image of a lion's head with the text 'Award for Excellence and Innovation' below.
Rock Climbing at science camp
Friends at the dance
RCMS Garden - Watermelon
Friends at Science Camp
RCMS Gym at night
RCMS B-wing at night
RCMS Library quad at night
Student-Staff 2025
Student-Staff 2025
Dance Team 2025
Student-Staff 2025
Student with admin.

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Welcome —

About Us

The Cucamonga School District is located in the western region of San Bernardino County in the Cities of Rancho Cucamonga and Ontario.  As one of four K-8 elementary school districts in the city, the students feed into the Chaffey Joint Union High School District.  The district has three elementary schools (K-5) and one middle school (6-8) serving a diverse student population of approximately 2443.
 

Learn More About Us

Our differentiators —

District Goals

The Cucamonga School District, with an appreciation for diversity, provides a comprehensive education that promotes academic, emotional and social development, which enables students to be lifelong learners and realize their full potential as contributing members of society. 

  • Innovative Curriculum

    Focus on, promote and challenge the success of all students to meet or exceed grade level standards through scientifically research-based quality curriculum, effective teaching strategies and professional development.

  • Collaboration & Support

    Increase the effectiveness of parents, teachers and students working together as a team, through regular communication to ensure student achievement and success.

  • Optimizing Learning Experiences

    Use all available resources to support optimum learning experiences for students by establishing priorities and controls which ensure spending in a responsible manner.

Latest News

Stay up to date on exciting news, events and more with the ParentSquare app!

Superintendent's Weekly Newsletter

May 23, 2026

Superintendent's Weekly Newsletter

SUPERINTENDENT'S WEEKLY NEWSLETTERMay 22, 2026 Dear CSD Families, Today marks the last day of school, and we want to thank you for an incredible year filled with learning, growth, and memorable mom...

Superintendent's Weekly Newsletter

May 16, 2026

Superintendent's Weekly Newsletter

SUPERINTENDENT'S WEEKLY NEWSLETTERMay 15, 2026 Dear CSD Families, As we approach the final week of the school year, I want to take a moment to express my sincere gratitude to our students, staff, a...

Superintendent's Weekly Newsletter

May 9, 2026

Superintendent's Weekly Newsletter

SUPERINTENDENT'S WEEKLY NEWSLETTER5.8.26 Dear CSD Families, This week, we are proud to celebrate the outstanding accomplishments of our middle school dance team following their incredible performan...

Superintendent's Weekly Newsletter

May 4, 2026

Superintendent's Weekly Newsletter

SUPERINTENDENT'S WEEKLY NEWSLETTER5/3/2026 Dear CSD Families, This past week was filled with meaningful moments across our district, and I’m pleased to share a few highlights with you. One of the s...

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Upcoming Events

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View the full calendar to see all the exciting events we have happening in the next few weeks and months!

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District profile —

At a Glance

Quick stats that highlight who we are — by the numbers.

  • K-8

    Grades within the district

  • 2,357

    Enrolled students

  • 144

    Full-time teachers

  • 20:1

    Student to teacher ratio