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Public schoolMiddleGrades 6–8

Lone Hill Middle

🇺🇸 Official data · 2025San Dimas, California 91773 · Bonita Unified

62.8/ 100
Success Index (US)
Top 50%

#273 of 1,334 middle schools in California
#4864 of 15,369 nationally

How is this calculated?
Students
870
Enrollment
870
Source: NCES CCD
Free/reduced-price lunch
38.9%
Source: NCES CCD
Students per teacher
23.5
Source: NCES CCD

About Lone Hill Middle

Lone Hill Middle is a public middle located in San Dimas, in the Bonita Unified school district of California, United States. It caters for Grades 6–8. In 2025 it enrolled 870 students. Traditional public schools run by a school district; free to attend.

Its Success Index (US) is 62.8 out of 100, placing it in the top 50% of middle schools in United States and 273rd of 1,334 ranked middle schools in California. Its strongest component is reading proficiency (79th percentile), and its weakest is students per teacher (4th percentile).

Other published figures: enrollment 870.

There are 7 schools in San Dimas; Lone Hill Middle ranks 5th of 7 scored schools there.

Success Index (US) breakdown

Each component is a percentile against middle schools across United States.

  • Math proficiency (30%)54%
  • Reading proficiency (30%)65%
  • Community advantage (fewer free/reduced-price lunch) (25%)38.9%
  • Students per teacher (15%)23.5

The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.

Published measures

All figures published for Lone Hill Middle by the official sources.

Enrollment
870
Students enrolled in the latest NCES directory year.
Free/reduced-price lunch
38.9%
Share of students eligible for free or reduced-price lunch.
Students per teacher
23.5
Enrollment divided by FTE teachers; not class size.
Reading proficiency
65%
Share of tested students proficient or above (all students, all grades).
Math proficiency
54%
Share of tested students proficient or above (all students, all grades).

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Schools near Lone Hill Middle

Closest schools by straight-line distance, with their Success Index (US).

Similar schools

Public middle schools in California with a comparable Enrollment.

Frequently asked questions

Is Lone Hill Middle a good school?

Lone Hill Middle has a Success Index (US) of 62.8 out of 100 (Top 50% of middle schools in United States) and ranks #273 of 1,334 in California. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.

Where does Lone Hill Middle rank in California?

Lone Hill Middle ranks #273 of 1,334 middle schools in California and #4864 of 15,369 nationally on the Success Index (US) (2025 data).

How many students attend Lone Hill Middle?

Lone Hill Middle had 870 students in 2025.

Is Lone Hill Middle a elementary school or a high school?

Lone Hill Middle is classified as a middle covering Grades 6–8. It is a public school.

What other schools are near Lone Hill Middle?

There are 10 schools within 15 km of Lone Hill Middle; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.