Enrollment
65
California · 2024-25 NCES data
High school (grades 9-12) · Sonora, CA
Theodore Bird High
Federal NCES profile for Theodore Bird High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 18/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 063726009445
👥 S:T ratio 13
📚 AP courses 10
🌟 Gifted program 30
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Theodore Bird High earns 18/100 on the Resource Investment Index, with class sizes near the California median.
- #3 of 3
- high schools in Sonora · Resource Index
- 18
- Resource Index · Lower
- 21.7:1
- students per teacher
- 50.0%
- free-lunch eligible
Theodore Bird High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Theodore Bird High ranks #3 of 3 high schools in Sonora, CA.
School address
District: Sonora Union High · California
NCES ID 063726009445 Verify on NCES CCD record →
Teachers (FTE)
3.0
Federal CCD staff survey
Students per teacher
21.7:1
vs 21.5:1 California avg
+1% vs state
Free-lunch eligible
50.0%
vs 55.5% California avg
-10% vs state
Student-teacher ratio in context
How Theodore Bird High compares with California and U.S. medians
What stands out at Theodore Bird High
Theodore Bird High is a higher-need, small high school in Sonora, California, enrolling 65 students.
At 21.7:1, 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.
Its free-meal eligibility rate of 50.0% lands close to the California typical range, neither a high- nor low-need campus by this measure.
This is a small campus: fewer students than 93% of California schools, with 65 enrolled.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 185 similarly sized, similarly resourced-need California schools statewide, it ranks #160, in the lower tier once campus size and economic need are matched.
Its student body is led by White (79%) and Hispanic or Latino (13%) (diversity index 36/100).
No Advanced Placement courses are reported for this campus in the federal data.
Among Sonora's high schools, it stands alongside Sonora High (880 students): Theodore Bird High is smaller than that campus by headcount and runs leaner classes (21.7:1 vs 23.2:1).
Sonora Union High also operates Sonora High (880 students) and Dario Cassina High (44 students) alongside Theodore Bird 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
How Theodore Bird High compares
Theodore Bird 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 | 21.7:1 | ▲ 1% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 50.0% | ▼ 10% | 55.5% | 51.7% |
| Enrollment | 65 | top 93% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.7:1
Leaner classes than 11% of US schools, heavier class loads than most.
65
Bigger than 7% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
50.0%
free-lunch eligible
- 10% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
21.7:1
students per teacher
- 1% above state mean
Top 50% in California - lower ratio than 50% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Funding equity
$14,368
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
White 79.0%
Hispanic or Latino 12.9%
Two or More 4.8%
American Indian / Alaska Native 1.6%
Native Hawaiian / Pacific Islander 1.6%
Largest group: White at 79.0% of enrollment.
Student-body diversity index 35.6/100
Simpson diversity index - at 35.6, Theodore Bird High is less mixed than the California school average of 46.0.
Programs
AP program Not offered
Funding & spending
District-wide per-pupil expenditure for Sonora Union High, which includes Theodore Bird High.
$14,368
Per student
-13%
vs California
Avg $16,509
-13%
vs U.S.
Avg $16,593
Revenue mix
Local 68.9%
State 20.6%
Federal 10.6%
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.
How Theodore Bird High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sonora High | Larger | Lower economic need | Higher S:T ratio |
| Dario Cassina High | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Theodore Bird High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 880
- Students per teacher
- 23.2:1
- Resource Index
- 30/100
- Enrollment
- 44
- Students per teacher
- 14.7:1
- Resource Index
- 54/100
Similar high schools in Sonora
2 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
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.
Similar enrollment (~65 students)
Similar student-teacher ratio (~21.7:1)
Next steps
Verify locally before acting on Theodore Bird High's federal record.
- Compare Theodore Bird High against another school. Compare schools
- Sonora Union High's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Theodore Bird High
How many students attend Theodore Bird High?
Theodore Bird High has 65 students enrolled. It is a high school in Sonora, CA.
What is the student-teacher ratio at Theodore Bird High?
The student-teacher ratio at Theodore Bird High is 21.7:1, which is 1% higher than the California average of 21.5:1 and 38% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Theodore Bird High?
50.0% of students at Theodore Bird High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Theodore Bird High?
The largest demographic group at Theodore Bird High is White at 79.0% of enrollment, in Sonora, CA.
What is the Resource Investment Index for Theodore Bird High?
Theodore Bird High has a Resource Investment Index of 18/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Theodore Bird High rank among high schools in Sonora?
By Resource Investment Index, Theodore Bird High ranks #3 of 3 high schools in Sonora, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Sonora on the city page.
Is Theodore Bird High a good school?
Theodore Bird High earns 18/100 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.
What other schools are in Sonora Union High?
Besides Theodore Bird High, Sonora Union High also operates Sonora High (880 students) and Dario Cassina High (44 students). See the Sonora Union High district page for the complete list.
Related tools
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.