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#2202 of 9,533 schools in CA

Top 23% in state

Lone Hill Middle

Middle School · Bonita Unified

115 West Allen Ave., San Dimas, CA 91773

Enrollment

906

Student-Teacher

24.5:1

Score

7.5

Grades

6th – 8th

Updated 2022-23

How this school compares

In San Dimas

#6 of 14

public schools

California middle schools

#265 of 1,349

In district

#6 of 13

Bonita Unified

Academic growth

9.0 / 10

Exceptional

About Lone Hill Middle

Lone Hill Middle serves 906 students in grades 6-8 in San Dimas, California, earning recognition as a high-performing public middle school. With a MySchoolScout rating of 7.6 out of 10 and ranking in the 82nd percentile statewide (#1730 out of 9,566 California schools), the school demonstrates strong academic achievement across its three grade levels. The school's academic performance is particularly noteworthy in English Language Arts, where 72% of students score proficient or above, while 54% reach proficiency in mathematics.

With 37 full-time equivalent teachers serving the student body, the school maintains a student-teacher ratio of 24.5:1, which is typical for middle schools of this size. Lone Hill Middle draws from a well-established community where the median household income reaches $101,466 and 38% of residents hold bachelor's degrees or higher. The neighborhood's stability is reflected in median home values of $714,400, while maintaining a relatively low poverty rate of 9.4% among the area's 34,066 residents.

The school is located on West Allen Avenue in this large suburban area of Los Angeles County, serving families in an economically stable community that values education and provides a supportive environment for middle school students during these important transitional years.

What Parents Should Know

The student-teacher ratio at Lone Hill Middle is 24.5:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress9.0Exceptional40%
Year-over-year improvement in student test scores.
View breakdown
Years of Data2
Annual Change+0.65 pts/yr
Data Period2019–2024
TrendStable
Academics8.8Excellent35%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency53.7%
Reading/ELA Proficiency71.6%
Math vs. State Avg+19.3 pts
Reading vs. State Avg+25.7 pts
Overall Proficiency63%
Expected (poverty-adj.)52%
vs. Expected+10.5 pts
Adjusted Percentile82th
Resources & Environment3.2Fair25%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio24.5:1
Per-Pupil Spending$13,167

Lone Hill Middle — Students at Lone Hill Middle score 63% proficient, which is above what's typical for similar communities (expected: 52%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

40.4%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 53.9%
School
State
33.9%
ELA Proficiency 70.3%
School
State
46.6%

Based on 10 test records from CA state assessments. About our data

Proficiency Trend

→ Stable

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
54%
ELA
65%
2024
Math
53.9%
ELA
71.6%

Source: EdFacts (NCES) and state assessment data. Growth score: 9.0/10.

How Lone Hill Middle Compares

See how Lone Hill Middle performs across key quality dimensions compared to state benchmarks.

Overall Score
7.5/10
77th percentile in CA
Academic
8.8/10
8.8/10
Growth
9.0/10
Above average
Environment
3.2/10
Below average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
40%
Teaching Staff
25:1 student-teacher ratio
37 teachers

Location

115 West Allen Ave., San Dimas, CA 91773

Nearby Alternatives

Families considering Lone Hill Middle may also want to explore other middle schools in the area. Willow Elementary (rated 8.8/10, 1.3 miles away, in nearby Glendora), which scores notably higher. Another option is San Dimas High (rated 8.4/10, 0.2 miles away), which scores slightly higher. Additionally, Gladstone Elementary (rated 7.2/10, 1.1 miles away), with a very similar rating. For more schools in San Dimas, see our San Dimas schools guide .

Nearby Schools

20 within 1.7 mi
School Distance Rating
San Dimas High San Dimas 0.2 mi 8.4
Adult Transition Program San Dimas 0.2 mi
CANYON VIEW SCHOOL San Dimas 0.5 mi 6.7
DOVE DAY SCHOOL- EDUCATIONAL PROGRAMS- INC. San Dimas 0.6 mi
ARROW MONTESSORI SCHOOL OF SAN DIMAS San Dimas 1.1 mi 6.2
Arrow Montessori School of San Dimas San Dimas 1.1 mi
Gladstone Elementary San Dimas 1.1 mi 7.2
Glen Oak Elementary Covina 1.0 mi 6.7
Willow Elementary Glendora 1.3 mi 8.8
Arma J. Shull Elementary San Dimas 1.3 mi 7.2
Arrow High (Continuation) Glendora 1.5 mi 5.4
Oak Knoll Alternative Glendora 1.5 mi 5.4
Bridges Community Day Glendora 1.5 mi
ST LOUISE DE MARILLAC SCHOOL Covina 1.4 mi 5.5
St. Louise de Marillac School Covina 1.5 mi
VIA VERDE MONTESSORI SCHOOL CORP. San Dimas 1.8 mi
VIA VERDE MONTESSORI SCHOOL San Dimas 1.8 mi 6.4
Chaparral High (Continuation) San Dimas 1.8 mi 7.0
Vista (Alternative) San Dimas 1.8 mi
Badillo Elementary Covina 1.7 mi 6.3

Neighborhood Census ACS (2019-2023)

Census data for ZIP 91773 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$105,926

Median Home Value

$754,700

Median Rent

$2,232/mo

Population

33,917

College Educated

40.4%

Homeownership

71.3%

Avg Commute

31.9 min

Poverty Rate

9.2%

Median Age

42.7

Community Profile

The community surrounding Lone Hill Middle has a median household income of $105,926. It is a well-educated community where 40% of adults hold a bachelor's degree or higher. The median home value in the area is $754,700, with a median rent of $2,232/month. The local poverty rate of 9.2% is relatively low. The average commute for residents is 32 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
Ahwahnee Middle Fresno, CA 7.5
Blaker-Kinser Junior High Ceres, CA 7.5
Bobby Duke Middle Coachella, CA 7.5
Calle Mayor Middle Torrance, CA 7.5
Canyon Hills Junior High Chino Hills, CA 7.5
Cecil Avenue Math and Science Academy Delano, CA 7.5

Frequently Asked Questions

Common questions about Lone Hill Middle

What grades does Lone Hill Middle serve?

Lone Hill Middle serves students in grades 6th through 8th.

How many students attend Lone Hill Middle?

Lone Hill Middle has an enrollment of approximately 906 students.

What is the student-teacher ratio at Lone Hill Middle?

The student-teacher ratio at Lone Hill Middle is 24.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Lone Hill Middle rank in CA?

Lone Hill Middle is ranked #2202 out of 9,533 schools in CA.

What is Lone Hill Middle's MySchoolScout rating?

Lone Hill Middle has a composite rating of 7.5 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

What are the test scores at Lone Hill Middle?

Based on the most recent state assessment data, Lone Hill Middle has 53.9% math proficiency and 70.3% reading/ELA proficiency.

Is Lone Hill Middle a charter school?

No, Lone Hill Middle is not a charter school. It is a traditional public school operated by the local school district.

Is Lone Hill Middle a Title I school?

No, Lone Hill Middle is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Lone Hill Middle?

40.4% of students at Lone Hill Middle qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

Walk Score
46 Car-Dependent
Bike Score
50 Bikeable
City Safety
High (2,574/100K)

Powered by Walk Score

FBI UCR 2024. City-level (San Dimas). Data >1 year old.

Quick Facts NCES CCD (SY 2022-23)

Grades
6th – 8th
Enrollment
906
Student-Teacher Ratio
24.5:1
Teachers (FTE)
37
Free/Reduced Lunch
40.4%
Type
regular
Setting
Large Suburb
County
Los Angeles County
Data Year
2023–2024

District

Bonita Unified
District Enrollment
9,957
Schools in District
15
Per-Pupil Spending
$14,544
District Rank
#6 of 13

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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