Elementary Schools in Bloomington, California: 5 schools. Average score 9.9 points below the state. Here is what that number does — and doesn't — tell you.
Bloomington, California has 5 ranked elementary schools with an average Scope Score of 29.0/100 — 9.9 points below the state average of 38.9. The highest-scoring school is Ruth Grimes Elementary at 33/100, where 20.4% of students exceed the state standard on the 2025 CAASPP assessment. Bloomington schools average 12.0% exceeded standard (state: 21.4%) — this exceeded-vs-met distinction shows how many students go beyond the standard rather than only meeting it. Chronic absenteeism averages 19.7% (near the state average of 17.9%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.
Start with your child’s school level
The overview describes elementary schools. The lists below separate elementary, middle and high schools, so each school’s standing stays within its own comparison group. Open a profile to see the underlying results, student support and questions to ask on a visit.
Every school in Bloomington
ranked by Scope Score · 2024–25 CAASPP · levels never mixed
Elementary Schools (5)
| # | School | Exceeded | Score |
|---|---|---|---|
| 1 | Ruth Grimes Elementary Colton Joint Unified | 20.4% | 43rd percentile · DevelopingScope Score 33/100 |
| 2 | Gerald A. Smith Elementary Colton Joint Unified | 13.2% | 38th percentile · DevelopingScope Score 31/100 |
| 3 | Crestmore Elementary Colton Joint Unified | 14.2% | 33rd percentile · DevelopingScope Score 29/100 |
| 4 | Mary B. Lewis Elementary Colton Joint Unified | 5.3% | 30th percentile · DevelopingScope Score 28/100 |
| 5 | Walter Zimmerman Elementary Colton Joint Unified | 7.1% | 16th percentile · Needs SupportScope Score 23/100 |
High Schools (2)
| # | School | Exceeded | Score |
|---|---|---|---|
| 1 | Bloomington High Colton Joint Unified | 8.9% | 33rd percentile · DevelopingScope Score 48/100 |
| 2 | Slover Mountain High (Continuation) Colton Joint Unified continuation high school | 0.0% | 34th percentile · DevelopingWithin its own school classScope Score 21/100 |
Free to download, CC BY 4.0 with attribution.
Data source: California Department of Education · CAASPP 2024-25 · Methodology
Scores are SchoolScope's analysis of public data, not official CDE ratings. They represent one way of interpreting test results and should not be the sole basis for school decisions.
Elementary school archetypes in Bloomington
Hidden gems: 1 school in Bloomington is classified as On the Rise — showing positive growth trajectories that raw proficiency scores alone don't capture. These are schools where students leave with more than they arrived with.
Archetypes are data-driven labels based on Scope Score dimensions. Learn more
Numbers tell you whether students are clearing the bar. A school visit tells you whether they're happy doing it. These metrics are intentionally missing from the Scope Score: class sizes and student-teacher interaction quality; arts, music, athletics, and enrichment programs; teacher experience and turnover; campus safety and social-emotional support; parent and community engagement; quality of special education and gifted programs; how school zones and enrollment boundaries affect access. Full methodology