Enrollment
458
Texas · 2024-25 NCES data
Other / mixed grade configuration · Southlake, TX
Old Union El
Federal NCES profile for Old Union El, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
2024-25 NCES dataOther / mixed grade configurationNCES 481302009060
👥 S:T ratio 50
🌟 Gifted program 70
🎓 Counselors 8
📋 Attendance 84
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Old Union El earns 53/100 on the Resource Investment Index, with class sizes smaller than 73% of Texas schools.
- #1 of 4
- schools in Southlake · Resource Index
- 53
- Resource Index · Higher
- 12.4:1
- small classes for Texas
- 458
- students enrolled
Old Union El has class sizes smaller than 73% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Old Union El ranks #1 of 4 schools in Southlake, TX.
School address
Teachers (FTE)
37.0
Federal CCD staff survey
Students per teacher
12.4:1
vs 14.7:1 Texas avg
-16% vs state
Student-teacher ratio in context
How Old Union El compares with Texas and U.S. medians
What stands out at Old Union El
Old Union El is a mid-sized combined-grade school in Southlake, Texas, enrolling 458 students.
Class sizes run a bit leaner than typical: 12.4:1 puts it in the smaller third of Texas schools by student-teacher ratio.
With 458 students, its enrollment sits close to the Texas median campus size.
Its Resource Investment Index lands in the upper third of 8,960 scored Texas schools.
Its student body is led by White (57%) and Asian (18%) (diversity index 62/100).
Counselor access is stretched at roughly 458 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 6.6% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Carroll Isd spends $10,593 per pupil, 22% below the Texas average, a leaner-resourced district than most.
Carroll Isd also operates Carroll Senior H S (1,422 students) and Carroll H S (1,357 students) alongside Old Union El.
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 Old Union El compares
Old Union El on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.4:1 | ▼ 16% | 14.7:1 | 15.7:1 |
| Enrollment | 458 | top 56% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.4:1
Leaner classes than 72% of US schools, among the more generously staffed nationally.
458
Bigger than 56% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
12.4:1
students per teacher
- 16% below state mean
Top 27% in Texas - lower ratio than 73% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
6.6%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$10,593
per pupil, district-wide
- below Texas avg of $13,644
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 458 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 0 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 0.2 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 56.8%
Asian 18.3%
Hispanic or Latino 13.8%
Two or More 9.4%
African American 0.9%
Native Hawaiian / Pacific Islander 0.9%
Largest group: White at 56.8% of enrollment.
Student-body diversity index 61.6/100
Simpson diversity index - at 61.6, Old Union El is more mixed than the Texas school average of 44.7.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Carroll Isd, which includes Old Union El.
$10,593
Per student
-22%
vs Texas
Avg $13,644
-36%
vs U.S.
Avg $16,593
Revenue mix
Local 86.3%
State 9.1%
Federal 4.5%
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 Old Union El Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Carroll Senior H S | Larger | No free-lunch data | Higher S:T ratio |
| Carroll H S | Larger | No free-lunch data | Higher S:T ratio |
| Carroll Middle | Larger | No free-lunch data | Higher S:T ratio |
| Don T Durham Int | Larger | No free-lunch data | Higher S:T ratio |
| Jack D Johnson El | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Old Union El's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,422
- Students per teacher
- 14.8:1
- Resource Index
- 48/100
- Enrollment
- 1,357
- Students per teacher
- 17.6:1
- Resource Index
- 56/100
- Enrollment
- 713
- Students per teacher
- 16.2:1
- Resource Index
- 58/100
- Enrollment
- 667
- Students per teacher
- 14.5:1
- Resource Index
- 57/100
- Enrollment
- 614
- Students per teacher
- 13.6:1
- Resource Index
- 50/100
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Texas, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~458 students)
Similar student-teacher ratio (~12.4:1)
Next steps
Verify locally before acting on Old Union El's federal record.
- Compare Old Union El against another school. Compare schools
- Carroll Isd'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 Old Union El
How many students attend Old Union El?
Old Union El has 458 students enrolled. It is a public school in Southlake, TX.
What is the student-teacher ratio at Old Union El?
The student-teacher ratio at Old Union El is 12.4:1, which is 16% lower than the Texas average of 14.7:1 and 21% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Old Union El?
The largest demographic group at Old Union El is White at 56.8% of enrollment, in Southlake, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.6/100.
What is the Resource Investment Index for Old Union El?
Old Union El has a Resource Investment Index of 53/100 (higher 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).
How does Old Union El rank among schools in Southlake?
By Resource Investment Index, Old Union El ranks #1 of 4 schools in Southlake, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Southlake on the city page.
Is Old Union El a good school?
Old Union El earns 53/100 on the Resource Investment Index, with class sizes smaller than 73% of Texas 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.
What other schools are in Carroll Isd?
Besides Old Union El, Carroll Isd also operates Carroll Senior H S (1,422 students), Carroll H S (1,357 students), and Carroll Middle (713 students). See the Carroll Isd 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.