Enrollment
582
Texas · 2024-25 NCES data
Other / mixed grade configuration · Lewisville, TX
Rockbrook El
Federal NCES profile for Rockbrook El, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
2024-25 NCES dataOther / mixed grade configurationNCES 482730009594
👥 S:T ratio 56
🌟 Gifted program 70
🎓 Counselors 42
📋 Attendance 6
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Rockbrook El earns 43/100 on the Resource Investment Index, with class sizes smaller than 85% of Texas schools.
- #11 of 16
- schools in Lewisville · Resource Index
- 43
- Resource Index · Typical
- 11:1
- small classes for Texas
- 65.2%
- free-lunch eligible
Rockbrook El has class sizes smaller than 85% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Rockbrook El ranks #11 of 16 schools in Lewisville, TX.
School address
District: Lewisville Isd · Texas
NCES ID 482730009594 Verify on NCES CCD record →
Teachers (FTE)
53.0
Federal CCD staff survey
Students per teacher
11:1
vs 14.7:1 Texas avg
-25% vs state
Free-lunch eligible
65.2%
vs 61.9% Texas avg
+5% vs state
Student-teacher ratio in context
How Rockbrook El compares with Texas and U.S. medians
What stands out at Rockbrook El
Rockbrook El is a higher-need, mid-sized combined-grade school in Lewisville, Texas, enrolling 582 students.
Classes run notably small here: at 11:1, Rockbrook El is leaner than roughly 85% of Texas schools and 25% under the state's 14.7:1 norm, more adult attention per pupil than most peers.
Its free-meal eligibility rate of 65.2% lands close to the Texas typical range, neither a high- nor low-need campus by this measure.
With 582 students, its enrollment sits close to the Texas median campus size.
Its Resource Investment Index sits near the middle of the pack among 8,960 scored Texas schools.
Against 1,703 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #666.
Its student body is led by African American (59%) and Hispanic or Latino (22%) (diversity index 60/100).
Counselor coverage runs a bit thin, about 291 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 37.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Lewisville Isd also operates Lewisville H S (4,001 students) and Hebron H S (3,668 students) alongside Rockbrook 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 Rockbrook El compares
Rockbrook 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 | 11:1 | ▼ 25% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 65.2% | ▲ 5% | 61.9% | 51.7% |
| Enrollment | 582 | top 39% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11:1
Leaner classes than 83% of US schools, among the more generously staffed nationally.
582
Bigger than 71% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
65.2%
free-lunch eligible
- 5% 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
11:1
students per teacher
- 25% below state mean
Top 15% in Texas - lower ratio than 85% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
37.8%
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
$11,526
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
Counselors2.0 FTE
Per 291 students, the combined health-and-guidance staffing load for this school.
Discipline context
71
in-school suspensions + 27 out-of-school
Suspension rate: 12.2 per 100 students. Combined in-school and out-of-school rate: 16.8 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
African American 58.8%
Hispanic or Latino 21.5%
White 6.7%
Two or More 6.5%
Asian 5.8%
American Indian / Alaska Native 0.5%
Native Hawaiian / Pacific Islander 0.2%
Largest group: African American at 58.8% of enrollment.
Student-body diversity index 59.6/100
Simpson diversity index - at 59.6, Rockbrook El is more mixed than the Texas school average of 44.7.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Lewisville Isd, which includes Rockbrook El.
$11,526
Per student
-16%
vs Texas
Avg $13,644
-31%
vs U.S.
Avg $16,593
Revenue mix
Local 82.2%
State 7.8%
Federal 10.0%
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 Rockbrook El Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lewisville H S | Larger | Similar economic need | Higher S:T ratio |
| Hebron H S | Larger | Lower economic need | Higher S:T ratio |
| Flower Mound H S | Larger | Lower economic need | Higher S:T ratio |
| Marcus H S | Larger | Lower economic need | Higher S:T ratio |
| The Colony H S | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Rockbrook El's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 4,001
- Students per teacher
- 13.7:1
- Resource Index
- 53/100
- Enrollment
- 3,668
- Students per teacher
- 16.4:1
- Resource Index
- 51/100
- Enrollment
- 3,426
- Students per teacher
- 15.7:1
- Resource Index
- 51/100
- Enrollment
- 2,998
- Students per teacher
- 15:1
- Resource Index
- 55/100
- Enrollment
- 1,803
- Students per teacher
- 13:1
- 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 (~582 students)
Similar student-teacher ratio (~11:1)
Next steps
Verify locally before acting on Rockbrook El's federal record.
- Compare Rockbrook El against another school. Compare schools
- Lewisville 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 Rockbrook El
How many students attend Rockbrook El?
Rockbrook El has 582 students enrolled. It is a public school in Lewisville, TX.
What is the student-teacher ratio at Rockbrook El?
The student-teacher ratio at Rockbrook El is 11:1, which is 25% lower than the Texas average of 14.7:1 and 30% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Rockbrook El?
65.2% of students at Rockbrook El are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Rockbrook El?
The largest demographic group at Rockbrook El is African American at 58.8% of enrollment, in Lewisville, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.6/100.
What is the Resource Investment Index for Rockbrook El?
Rockbrook El has a Resource Investment Index of 43/100 (typical 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 Rockbrook El rank among schools in Lewisville?
By Resource Investment Index, Rockbrook El ranks #11 of 16 schools in Lewisville, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Lewisville on the city page.
Is Rockbrook El a good school?
Rockbrook El earns 43/100 on the Resource Investment Index, with class sizes smaller than 85% 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 Lewisville Isd?
Besides Rockbrook El, Lewisville Isd also operates Lewisville H S (4,001 students), Hebron H S (3,668 students), and Flower Mound H S (3,426 students). See the Lewisville 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.