Armstrong Elementary vs Ranch Hills Elementary
Ranch Hills Elementary has a higher overall rating of 8.5/10 compared to 4.5/10. Ranch Hills Elementary is significantly larger with 416 students, about 1.7× the size of Armstrong Elementary (249). In math proficiency, Ranch Hills Elementary leads at 54.0%.
Attendance data is under correction. A public school's existing Resources & Environment score and overall rating shown here may still reflect an unverified attendance input.
Armstrong Elementary
Diamond Bar, CA
4.5/10
Elementary SchoolKindergarten – 6th
249 students
Ranch Hills Elementary
Pomona, CA
8.5/10
Elementary SchoolKindergarten – 6th
416 students
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| Metric | Armstrong Elementary | Ranch Hills Elementary |
|---|---|---|
| Overall Rating | 4.5 / 10 | 8.5 / 10 |
| Academic Score | 6.7 | 8.3 |
| Growth Score | 2.0 | 8.9 |
| Diversity Index | — | — |
| Free/Reduced Lunch | 69.1% | 63.9% |
| Environment Score | 7.3 | 7.6 |
| State Rank | #8,454 of 9,557 | #594 of 9,557 |
| State Percentile | 12th | 94th |
Test Scores
| Subject | Armstrong Elementary | Ranch Hills Elementary |
|---|---|---|
| Math Proficiency | 42.0% | 54.0% |
| Math (State Avg) | — | — |
| ELA Proficiency | 67.0% | 63.0% |
| ELA (State Avg) | — | — |
School Details
| Detail | Armstrong Elementary | Ranch Hills Elementary |
|---|---|---|
| Type | Elementary School | Elementary School |
| Grades | Kindergarten – 6th | Kindergarten – 6th |
| Enrollment | 249 | 416 |
| Student-Teacher Ratio | 20.8:1 | 20.8:1 |
| Free/Reduced Lunch | 69.1% | 63.9% |
| District | Pomona Unified | Pomona Unified |
| City | Diamond Bar | Pomona |
Neighborhood
| Metric | Diamond Bar (91765) | Pomona (91766) |
|---|---|---|
| Median Household Income | $104,737 | $77,699 |
| Median Home Value | $878,900 | $568,300 |
| Median Rent | $2,395 | $1,776 |
| College Educated (Bachelor's+) | 53.3% | 19.9% |
| Poverty Rate | 10.1% | 12.8% |
| Avg Commute | 34 min | 31 min |