Total enrollment
4,296
+6 (+0%) vs SY 2020-21
10 schools in Charter Oak Unified
California · 4,296 students · 2 cities
Charter Oak Unified's public-school footprint covers 10 schools with combined enrollment of about 4,296 students, averaging 430 per school.
4-year change in Charter Oak Unified
SY 2020-21 vs SY 2024-25School count
10
+1 (+11%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Charter Oak Unified ranks
Among districts| Measure | This district | In California | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 45.3% | #204 of 534 | N/A |
| Enrollment ranked largest first | 4,296 | #292 of 587 | #2,261 of 9,234 |
| Number of schools ranked most first | 10 | #229 of 587 | N/A |
| Students per teacher ranked fewest first | 22.1:1 | #349 of 587 | #8,712 of 9,044 |
| Free or reduced-price lunch share ranked highest first | 72.0% | #235 of 587 | #1,781 of 8,164 |
| Diversity index ranked most diverse first | 41.6% | #390 of 530 | #3,847 of 6,853 |
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Inside Charter Oak Unified
State test results across the district's 7 scored schools run from Washington Elementary at 59.6% proficient to Badillo Elementary at 38.4%, a gap of 21.2 points. That is the 307th widest gap among 458 California districts with four or more scored schools.
Since 2017-18, the 10 district schools that reported both years went from 4,745 to 4,296 students (down 9%) and from 198 to 194 full-time teachers (down 2%), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| Charter Oak High | Covina | High | 09-12 | 1,259 |
| Royal Oak Middle | Covina | Middle | 07-08 | 610 |
| Cedargrove Elementary | Covina | Elementary | KG-06 | 569 |
| Badillo Elementary | Covina | Elementary | KG-06 | 442 |
| Glen Oak Elementary | Covina | Elementary | KG-06 | 428 |
| Washington Elementary | Glendora | Elementary | KG-06 | 421 |
| Willow Elementary | Glendora | Elementary | KG-06 | 388 |
| Oak Knoll Alternative | Glendora | Combined | KG-12 | 107 |
| Arrow High (Continuation) | Glendora | High | 09-12 | 71 |
| Bridges Community Day | Glendora | High | 07-12 | 1 |
About Charter Oak Unified
Charter Oak Unified is a sparse California school district running 10 schools with combined enrollment near 4,296.
On the level-by-level breakdown, Charter Oak Unified consists of 5 elementary, 1 middle, 3 high schools, and 1 combined or other.
Average enrollment per school in Charter Oak Unified is about 430, noticeably below the California average of roughly 578.
Five-year track record. Combined enrollment now sits at 4,296 students, stayed largely flat from the 4,290 reported in SY 2020-21. Charter Oak Unified now counts 10 public schools, up from 9 in SY 2020-21.
In the discussion threads here, the community for Charter Oak Unified discusses enrollment trends, district policy changes, and bus-route updates. Posts come from current and former families, staff, and alumni.