- Enrollment
- 4,001
- Students per teacher
- 13.7:1
- Resource Index
- 53/100
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 →
CCD year-over-year · 2022-23 → 2023-24
-60 students YoY
Rockbrook El shrank from 655 students in 2022-23 to 595 in 2023-24 (-9.2%).
Teacher FTE lost 53.1 → 51.5 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-60 students YoY 482730009594 · Lewisville, TX Other · MID · TRAD
582 enr · 11:1 · 65.2% lunch · RII 43
Nearest enrollment peer: Lewisville H S (4,001 students)
Rockbrook El shrank from 655 students in 2022-23 to 595 in 2023-24 (-9.2%). Teacher FTE lost 53.1 → 51.5 across the same CCD years. Read with this school → · District book → · Texas schools → · Find another →
Rockbrook El in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Lewisville H S
Lewisville H S
4,001 students
- Hebron H S
Hebron H S
3,668 students
- Flower Mound H
Flower Mound H S
3,426 students
- Marcus H S
Marcus H S
2,998 students
- The Colony H S
The Colony H S
1,803 students
- This school 582
Rockbrook El
582 students
What this shows Rockbrook El reports 582 students on the CCD universe file.
How Rockbrook El compares
Rockbrook El is a shrinking campus on CCD: ratios and free-lunch share vs 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 methodology
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
$12,299
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
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.
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
District finance for Lewisville Isd reports $12,299 per pupil (NCES F-33) - open the district page for the full revenue mix.
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
- 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
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 (~582 students)
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. CCD year-over-year: 655 (2022-23) → 595 (2023-24), down 60.
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, gifted-program reporting, counselor availability, chronic absenteeism. 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.
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.