Enrollment
1,239
California · 2024-25 NCES data
Middle school (grades 6-8) · Oxnard, CA
Federal NCES profile for Charles Blackstock Junior High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 26/100.
The verdict
Charles Blackstock Junior High earns 26/100 on the Resource Investment Index, with class sizes near the California median.
Charles Blackstock Junior High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Charles Blackstock Junior High ranks #8 of 8 middle schools in Oxnard, CA.
NCES ID 061785002198 Verify on NCES CCD record →
Enrollment
1,239
California · 2024-25 NCES data
Teachers (FTE)
56.0
Federal CCD staff survey
Students per teacher
22.1:1
vs 21.5:1 California avg
+3% vs state
Free-lunch eligible
80.4%
vs 55.5% California avg
+45% vs state
How Charles Blackstock Junior High compares with California and U.S. medians
Slightly above state median
22.1:1 - 0.6 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Charles Blackstock Junior High is a high-poverty, large middle school in Oxnard, California, enrolling 1,239 students.
At 22.1:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 80.4% of students eligible for free meals.
By headcount it is one of the larger campuses in California, bigger than 92% of state schools at 1,239 students.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Against 496 statewide peers matched on enrollment and economic need, it ranks mid-pack at #283.
Its student body is predominantly Hispanic or Latino (87% of enrollment) (diversity index 23/100).
Counselor access is stretched at roughly 620 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 30.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Oxnard's middle schools, it stands alongside R.J. Frank Academy of Marine Science & Engineering (1,027 students): Charles Blackstock Junior High is larger than that campus by headcount and runs heavier classes (22.1:1 vs 18.3:1).
Hueneme Elementary also operates E. O. Green Junior High (949 students) and Art Haycox Elementary (724 students) alongside Charles Blackstock Junior High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Charles Blackstock Junior High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.1:1 | ▲ 3% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 80.4% | ▲ 45% | 55.5% | 51.7% |
| Enrollment | 1,239 | top 8% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: Hispanic or Latino at 87.3% of enrollment.
Simpson diversity index - at 23.2, Charles Blackstock Junior High is less mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Hueneme Elementary, which includes Charles Blackstock Junior High.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| E. O. Green Junior High | Similar size | Lower economic need | Lower S:T ratio |
| Art Haycox Elementary | Smaller | Higher economic need | Similar S:T ratio |
| Fred L. Williams Elementary | Smaller | Similar economic need | Similar S:T ratio |
| Richard Bard Elementary | Smaller | Lower economic need | Lower S:T ratio |
| Ansgar Larsen Elementary | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Charles Blackstock Junior High's own figures; each column derives from NCES Common Core of Data.
6 comparable middle schools (grades 6-8) serving the same city.
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Charles Blackstock Junior High's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Charles Blackstock Junior High has 1,239 students enrolled. It is a middle school in Oxnard, CA.
The student-teacher ratio at Charles Blackstock Junior High is 22.1:1, which is 3% higher than the California average of 21.5:1 and 41% higher than the national average of 15.7:1.
80.4% of students at Charles Blackstock Junior High are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Charles Blackstock Junior High is Hispanic or Latino at 87.3% of enrollment, in Oxnard, CA.
Charles Blackstock Junior High has a Resource Investment Index of 26/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Charles Blackstock Junior High ranks #8 of 8 middle schools in Oxnard, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Oxnard on the city page.
Charles Blackstock Junior High earns 26/100 on the Resource Investment Index, with class sizes near the California median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Charles Blackstock Junior High, Hueneme Elementary also operates E. O. Green Junior High (949 students), Art Haycox Elementary (724 students), and Fred L. Williams Elementary (572 students). See the Hueneme Elementary district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Charles Blackstock Junior High, Oxnard CA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/charles-blackstock-junior-high-ca
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