Enrollment
377
California · 2024-25 NCES data
Middle school (grades 6-8) · Byron, CA
Federal NCES profile for Excelsior Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
The verdict
Excelsior Middle earns 30/100 on the Resource Investment Index, even as it posts class sizes smaller than 83% of California schools. It is also more racially and ethnically mixed than most California schools.
Excelsior Middle has class sizes smaller than 83% of California schools. Computed live against every California school reporting to NCES.
NCES ID 060675000595 Verify on NCES CCD record →
Enrollment
377
California · 2024-25 NCES data
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
17.1:1
vs 21.5:1 California avg
-20% vs state
Free-lunch eligible
25.0%
vs 55.5% California avg
-55% vs state
How Excelsior Middle compares with California and U.S. medians
Smaller classes than state median
17.1:1 - 4.4 below the California state median of 21.5:1, indicating smaller average class loads than typical schools in the state.
Excelsior Middle is a mid-sized middle school in Byron, California, enrolling 377 students.
Class sizes run a bit leaner than typical: 17.1:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 25.0% of students eligible for free meals.
With 377 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 941 statewide peers matched on enrollment and economic need, it ranks mid-pack at #578.
Its student body is led by White (46%) and Hispanic or Latino (30%), more mixed than most schools in the state (diversity index 68/100).
Counselor access is stretched at roughly 943 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 32.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Byron Union Elementary also operates Discovery Bay Elementary (417 students) and Timber Point Elementary (362 students) alongside Excelsior Middle.
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
Excelsior Middle on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.1:1 | ▼ 20% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 25.0% | ▼ 55% | 55.5% | 51.7% |
| Enrollment | 377 | top 64% | - | - |
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: White at 46.4% of enrollment.
Simpson diversity index - at 67.9, Excelsior Middle is more mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Byron Union Elementary, which includes Excelsior Middle.
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 |
|---|---|---|---|
| Discovery Bay Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Timber Point Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Byron Institute for Independent Study | Smaller | Higher economic need | Higher S:T ratio |
Comparisons are relative to Excelsior Middle's own figures; each column derives from NCES Common Core of Data.
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 Excelsior Middle'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.
Excelsior Middle has 377 students enrolled. It is a middle school in Byron, CA.
The student-teacher ratio at Excelsior Middle is 17.1:1, which is 20% lower than the California average of 21.5:1 and 9% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
25.0% of students at Excelsior Middle are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Excelsior Middle is White at 46.4% of enrollment, in Byron, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.9/100.
Excelsior Middle has a Resource Investment Index of 30/100 (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).
Excelsior Middle earns 30/100 on the Resource Investment Index, even as it posts class sizes smaller than 83% of California schools. It is also more racially and ethnically mixed than most California schools. 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 Excelsior Middle, Byron Union Elementary also operates Discovery Bay Elementary (417 students), Timber Point Elementary (362 students), and Byron Institute for Independent Study (26 students). See the Byron Union 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, “Excelsior Middle, Byron 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/excelsior-middle-ca
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