- Enrollment
- 3,362
- Students per teacher
- 18.3:1
- Resource Index
- 34/100
Other / mixed grade configuration · San Antonio, TX
Sinclair El
Federal NCES profile for Sinclair El, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
2024-25 NCES dataOther / mixed grade configurationNCES 481785005701
👥 S:T ratio 26
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 31
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sinclair El earns 32/100 on the Resource Investment Index, with class sizes larger than 88% of Texas schools.
- #242 of 327
- schools in San Antonio · Resource Index
- 32
- Resource Index · Typical
- 18.5:1
- large classes for Texas
- 67.7%
- free-lunch eligible
Sinclair El has class sizes larger than 88% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Sinclair El ranks #242 of 327 schools in San Antonio, TX.
School address
District: East Central Isd · Texas
NCES ID 481785005701 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-7 students YoY
Sinclair El held near 714 students from 2022-23 to 2023-24 (-7 headcount).
Teacher FTE added 40.5 → 42.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-7 students YoY 481785005701 · San Antonio, TX Other · MID · TRAD
739 enr · 18.5:1 · 67.7% lunch · RII 32
Nearest enrollment peer: East Central H S (3,362 students)
Sinclair El held near 714 students from 2022-23 to 2023-24 (-7 headcount). Teacher FTE added 40.5 → 42.1 across the same CCD years. Read with this school → · District book → · Texas schools → · Find another →
Sinclair El in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- East Central H
East Central H S
3,362 students
- East Central H 1,251
East Central Heritage Middle
1,251 students
- Legacy Middle 1,143
Legacy Middle
1,143 students
- Harmony El 781
Harmony El
781 students
- This school 739
Sinclair El
739 students
- Highland Fores 694
Highland Forest El
694 students
What this shows Sinclair El reports 739 students on the CCD universe file.
How Sinclair El compares
Sinclair El held steady on CCD headcount: ratios and free-lunch share vs Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.5:1 | ▲ 26% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 67.7% | ▲ 9% | 61.9% | 51.7% |
| Enrollment | 739 | top 23% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.5:1
Leaner classes than 22% of US schools, heavier class loads than most.
739
Bigger than 82% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
67.7%
free-lunch eligible
- 9% above the Texas average of 61.9%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
18.5:1
students per teacher
- 26% above state mean
Top 88% in Texas - lower ratio than 12% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
27.5%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$10,989
per pupil, district-wide
- below Texas avg of $14,348
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 739 students, the combined health-and-guidance staffing load for this school.
Discipline context
27
in-school suspensions + 1 out-of-school
Suspension rate: 3.7 per 100 students. Combined in-school and out-of-school rate: 3.8 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 70.1%
African American 17.1%
White 8.8%
Two or More 2.7%
American Indian / Alaska Native 0.7%
Native Hawaiian / Pacific Islander 0.7%
Largest group: Hispanic or Latino at 70.1% of enrollment.
Student-body diversity index 47.1/100
Simpson diversity index - at 47.1, Sinclair El is more mixed than the Texas school average of 44.7.
Programs
Gifted & talented Yes
District finance for East Central Isd reports $10,989 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Sinclair El Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| East Central H S | Larger | Lower economic need | Similar S:T ratio |
| East Central Heritage Middle | Larger | Lower economic need | Higher S:T ratio |
| Legacy Middle | Larger | Lower economic need | Similar S:T ratio |
| Harmony El | Similar size | Similar economic need | Higher S:T ratio |
| Highland Forest El | Similar size | Higher economic need | Similar S:T ratio |
Comparisons are relative to Sinclair El's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,251
- Students per teacher
- 20.9:1
- Resource Index
- 23/100
- Enrollment
- 1,143
- Students per teacher
- 17.3:1
- Resource Index
- 28/100
- Enrollment
- 781
- Students per teacher
- 20:1
- Resource Index
- 31/100
- Enrollment
- 694
- Students per teacher
- 19.3:1
- Resource Index
- 33/100
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~739 students)
Frequently asked questions about Sinclair El
How many students attend Sinclair El?
Sinclair El has 739 students enrolled. It is a public school in San Antonio, TX. CCD year-over-year: 721 (2022-23) → 714 (2023-24), nearly flat (-7).
What is the student-teacher ratio at Sinclair El?
The student-teacher ratio at Sinclair El is 18.5:1, which is 26% higher than the Texas average of 14.7:1 and 18% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Sinclair El?
67.7% of students at Sinclair El are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Sinclair El?
The largest demographic group at Sinclair El is Hispanic or Latino at 70.1% of enrollment, in San Antonio, TX.
What is the Resource Investment Index for Sinclair El?
Sinclair El has a Resource Investment Index of 32/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sinclair El rank among schools in San Antonio?
By Resource Investment Index, Sinclair El ranks #242 of 327 schools in San Antonio, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in San Antonio on the city page.
What other schools are in East Central Isd?
Besides Sinclair El, East Central Isd also operates East Central H S (3,362 students), East Central Heritage Middle (1,251 students), and Legacy Middle (1,143 students). See the East Central Isd district page for the complete list.