Enrollment
2,813
Florida · 2024-25 NCES data
High school (grades 9-12) · Altamonte Springs, FL
Lake Brantley High School
Federal NCES profile for Lake Brantley High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 120171001888
👥 S:T ratio 0
📚 AP courses 100
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 16
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Lake Brantley High School earns 37/100 on the Resource Investment Index, with class sizes larger than 93% of Florida schools. It is also one of the largest schools in Florida.
- #6 of 6
- public schools in Altamonte Springs · Resource Index
- 37
- Resource Index · Typical
- 25.8:1
- large classes for Florida
- 36.1%
- free-lunch eligible
Lake Brantley High School has class sizes larger than 93% of Florida schools. Computed live against every Florida school reporting to NCES.
By Resource Investment Index, Lake Brantley High School ranks #6 of 6 public schools in Altamonte Springs, FL.
School address
NCES ID 120171001888 Verify on NCES CCD record →
Teachers (FTE)
109.0
Federal CCD staff survey
Students per teacher
25.8:1
vs 17.8:1 Florida avg
+45% vs state
Free-lunch eligible
36.1%
vs 52.0% Florida avg
-31% vs state
Student-teacher ratio in context
How Lake Brantley High School compares with Florida and U.S. medians
What stands out at Lake Brantley High School
Lake Brantley High School is a large high school in Altamonte Springs, Florida, enrolling 2,813 students.
Class loads run heavy: 25.8:1 is larger than about 93% of Florida schools and 45% above the 17.8:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 36.1% of students eligible for free meals.
By headcount it is one of the larger campuses in Florida, bigger than 99% of state schools at 2,813 students.
Its Resource Investment Index trails 95% of the 3,996 Florida schools with a score on record, one of the lower results on this measure.
Among 154 similarly sized, similarly resourced-need Florida schools statewide, it ranks #142, in the lower tier once campus size and economic need are matched.
Its student body is led by White (45%) and Hispanic or Latino (35%) (diversity index 66/100).
On the academic-pipeline side it reports 32 Advanced Placement courses.
Counselor access is stretched at roughly 563 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 33.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The federal civil-rights collection also records 15 expulsions at this campus for 2021-22.
Seminole also operates Seminole High School (3,807 students) and Lake Mary High School (2,714 students) alongside Lake Brantley High School.
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 Lake Brantley High School compares
Lake Brantley High School on the metrics families compare, against Florida and U.S. means.
| Metric | This school | vs Florida | Florida avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 25.8:1 | ▲ 45% | 17.8:1 | 15.7:1 |
| Free-lunch eligible | 36.1% | ▼ 31% | 52.0% | 51.7% |
| Enrollment | 2,813 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
25.8:1
Leaner classes than 4% of US schools, heavier class loads than most.
2,813
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
36.1%
free-lunch eligible
- 31% below the Florida average of 52.0%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
25.8:1
students per teacher
- 45% above state mean
Top 93% in Florida - lower ratio than 7% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
33.6%
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
$9,352
per pupil, district-wide
- below Florida avg of $11,167
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors5.0 FTE
Per 563 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 168 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 6.0 per 100 students. Reported via the Civil Rights Data Collection. Includes 15 expulsions.
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 44.8%
Hispanic or Latino 35.2%
African American 12.1%
Two or More 4.5%
Asian 3.0%
American Indian / Alaska Native 0.2%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 44.8% of enrollment.
Student-body diversity index 65.8/100
Simpson diversity index - at 65.8, Lake Brantley High School is more mixed than the Florida school average of 52.3.
Programs
AP courses offered 32
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Seminole, which includes Lake Brantley High School.
$9,352
Per student
-16%
vs Florida
Avg $11,167
-44%
vs U.S.
Avg $16,593
Revenue mix
Local 43.4%
State 41.8%
Federal 14.8%
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 Lake Brantley High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Seminole High School | Larger | Similar economic need | Lower S:T ratio |
| Lake Mary High School | Similar size | Similar economic need | Similar S:T ratio |
| Hagerty High School | Similar size | Lower economic need | Similar S:T ratio |
| Oviedo High School | Similar size | Similar economic need | Lower S:T ratio |
| Lake Howell High School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Lake Brantley High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,807
- Students per teacher
- 23.6:1
- Resource Index
- 30/100
- Enrollment
- 2,714
- Students per teacher
- 26.3:1
- Resource Index
- 29/100
- Enrollment
- 2,449
- Students per teacher
- 25.2:1
- Resource Index
- 38/100
- Enrollment
- 2,312
- Students per teacher
- 24.1:1
- Resource Index
- 33/100
- Enrollment
- 2,241
- Students per teacher
- 24.6:1
- Resource Index
- 26/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Florida, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~2,813 students)
Similar student-teacher ratio (~25.8:1)
Next steps
Verify locally before acting on Lake Brantley High School's federal record.
- Compare Lake Brantley High School against another school. Compare schools
- Seminole'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 Lake Brantley High School
How many students attend Lake Brantley High School?
Lake Brantley High School has 2,813 students enrolled. It is a high school in Altamonte Springs, FL.
What is the student-teacher ratio at Lake Brantley High School?
The student-teacher ratio at Lake Brantley High School is 25.8:1, which is 45% higher than the Florida average of 17.8:1 and 64% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Lake Brantley High School?
36.1% of students at Lake Brantley High School are eligible for free lunch, compared to the Florida average of 52.0%.
What is the racial and ethnic makeup of Lake Brantley High School?
The largest demographic group at Lake Brantley High School is White at 44.8% of enrollment, in Altamonte Springs, FL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 65.8/100.
What is the Resource Investment Index for Lake Brantley High School?
Lake Brantley High School has a Resource Investment Index of 37/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Lake Brantley High School rank among public schools in Altamonte Springs?
By Resource Investment Index, Lake Brantley High School ranks #6 of 6 public schools in Altamonte Springs, FL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Altamonte Springs on the city page.
Is Lake Brantley High School a good school?
Lake Brantley High School earns 37/100 on the Resource Investment Index, with class sizes larger than 93% of Florida schools. It is also one of the largest schools in Florida. 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 Seminole?
Besides Lake Brantley High School, Seminole also operates Seminole High School (3,807 students), Lake Mary High School (2,714 students), and Hagerty High School (2,449 students). See the Seminole 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.