For the 2026 school year, there are 4 public middle schools serving 9,909 students in 91773, CA.
The top-ranked public middle schools in 91773, CA are Ramona Middle School, Lone Hill Middle School and Blue Ridge Academy. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public middle schools in zipcode 91773 have an average math proficiency score of 39% (versus the California public middle school average of 32%), and reading proficiency score of 55% (versus the 46% statewide average). Middle schools in 91773, CA have an average ranking of 8/10, which is in the top 30% of California public middle schools.
Minority enrollment is 66% of the student body (majority Hispanic), which is less than the California public middle school average of 78% (majority Hispanic).
Best 91773, CA Public Middle Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Ramona Middle School
(Math: 56% | Reading: 69%)
Rank:
Rank:
9/
Top 20%10
3490 Ramona Ave.
San Dimas, CA 91773
(909) 971-8260
San Dimas, CA 91773
(909) 971-8260
Gr: 6-8 | 1,371 students Student-teacher ratio: 27:1 Minority enrollment: 78%
Rank: #22.
Lone Hill Middle School
(Math: 47% | Reading: 60%)
Rank:
Rank:
8/
Top 30%10
700 South Lone Hill
San Dimas, CA 91773
(909) 971-8270
San Dimas, CA 91773
(909) 971-8270
Gr: 6-8 | 870 students Student-teacher ratio: 24:1 Minority enrollment: 82%
Rank: #33.
Blue Ridge Academy
Charter School
(Math: 31% | Reading: 48%)
Rank:
Rank:
6/
Top 50%10
955 Stanislaus St.
San Dimas, CA 91773
(661) 412-9363
San Dimas, CA 91773
(661) 412-9363
Gr: K-12 | 7,657 students Student-teacher ratio: 28:1 Minority enrollment: 62%
Rank: n/an/a
Vista (Alternative)
Alternative School
127 West Allen Ave.
San Dimas, CA 91773
(909) 971-8242
San Dimas, CA 91773
(909) 971-8242
Gr: K-12 | 11 students Student-teacher ratio: 6:1
Frequently Asked Questions
What are the top-ranked public middle schools in 91773, CA?
The top-ranked public middle schools in 91773, CA include Ramona Middle School, Lone Hill Middle School and Blue Ridge Academy.
How many public middle schools are located in 91773?
4 public middle schools are located in 91773.
What is the racial composition of students in 91773?
91773 public middle schools minority enrollment is 66% of the student body (majority Hispanic), which is less than the California public middle schools average of 78% (majority Hispanic).
Recent Articles
The School Choice Comparison Worksheet: 15 Factors Beyond Test Scores
Compare public schools with confidence using this 15-factor worksheet that looks beyond test scores to school culture, programs, safety, and student support.
Boundary Changes and Rezoning: How to Protect Your Child's School Plan
Learn why school boundary changes happen, how rezoning affects families, and the practical steps parents can take to protect their child's educational plan.
Teacher Turnover: How to Read the Warning Signs
Learn how to identify warning signs of teacher turnover, what causes frequent staff changes, and how parents can evaluate school stability.