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SCHOOL COMMUNITY·SEMINOLE·NCES 120171001888

LAKE BRANTLEY HIGH SCHOOL

991 SAND LAKE RD, ALTAMONTE SPRINGS, FL 32714 · (407) 746-3450 · Seminole County
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL2,813 STUDENTS
B-
allk12 Grade
Scored higher than 52% of Florida public high schools
  • B-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • B-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Florida public high schools

Enrollment
2,813
High
DISTRICT 1,776 · STATE 1,035
Student : Teacher
23.0:1
123 FTE teachers
DISTRICT 23.2:1 · STATE 23.5:1
Free / Reduced Lunch
44%
1,225 students
DISTRICT 50% · STATE 50%
Community
6
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 971625%
Grade 1080229%
Grade 1170425%
Grade 1259121%
Student demographics
66%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 70% · STATE 70% · US 70%
White
1,26145%
DISTRICT 40% · STATE 33% · US 43%
Hispanic
99135%
DISTRICT 33% · STATE 38% · US 30%
Black
33912%
DISTRICT 14% · STATE 21% · US 15%
Asian
853%
DISTRICT 7% · STATE 3% · US 6%
Two+
1264%
DISTRICT 5% · STATE 4% · US 5%
Native American
50%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
60%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
1,30847%
Female
1,50554%

Discussions

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Test scores

FAST / B.E.S.T. 2024-25 . % at Level 3 or Above
English Language Arts
64.6%
FL avg 56.7% . +3.6pp since 2023
Math
23.0%
FL avg 58.9% . -2.0pp since 2023

What this means: On the FAST / B.E.S.T., Florida's statewide test, about 65 of every 100 students at this school read and write at grade level and about 23 of 100 do math at grade level. Across all Florida schools, those numbers are about 57 and 59. Reading and writing scores are up about 4 points since 2023, while math scores are down about 2 points.

FAST / B.E.S.T. results by year

School yearEnglish Language ArtsMath
2024-2564.6%23.0%
2023-2461.0%25.0%
% at Level 3 or Above, all students and all tested grades.
Source: FAST / B.E.S.T.. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
52.9%
composite math + reading, all grades
Predicted
59.4%
based on FL schools with similar FRL share
Beats by
-6.5pp
below demographic expectation

What this means: About 53% of students here test proficient in math and reading, compared with the roughly 59% typical for Florida schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Florida's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like LAKE BRANTLEY HIGH SCHOOL

LAKE BRANTLEY HIGH SCHOOL's state test result (52.9% proficient) is higher than 2 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
LAKE BRANTLEY HIGH SCHOOL this school2,81343.5%52.9%
UNIVERSITY HIGH SCHOOL
ORANGE CITY
2,85543.5%55.7%
LAKE MARY HIGH SCHOOL
LAKE MARY
2,71440.8%55.1%
DELAND HIGH SCHOOL
DELAND
2,93645.4%57.3%
GEORGE W. JENKINS SENIOR HIGH
LAKELAND
2,46947.0%52.5%
FRANK W. SPRINGSTEAD HIGH SCHOOL
SPRING HILL
1,85346.5%45.8%
Matched among Florida high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where LAKE BRANTLEY HIGH SCHOOL ranks

Among high schools
MeasureThis schoolIn FloridaIn Seminole County
State test proficiency
ranked highest first
52.9%#272 of 555#6 of 9
Math proficiency
ranked highest first
23.0%#477 of 549
▼ 61
#8 of 9
▼ 3
Reading proficiency
ranked highest first
64.6%#174 of 559
▲ 3
#4 of 9
no change
Enrollment
ranked largest first
2,813#38 of 830#2 of 12
Students per teacher
ranked fewest first
23.0:1#339 of 575#9 of 10
Diversity index
ranked most diverse first
65.7%#144 of 594#6 of 10
Free and reduced lunch
ranked highest share first
43.5%#321 of 630#6 of 10
Enrollment change since 2017-18
ranked fastest growth first
+1.4%#229 of 246N/A
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
2,813
+179 (+7%) vs 2020
+11% since 1990-91, when it was 2,527
Student : Teacher
23.0:1
was 25.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-252,813122.523.0:144% (1,225)
2023-242,815121.323.2:147% (1,315)
2022-232,719109.724.8:146% (1,255)
2020-212,63410325.6:148% (1,267)
2017-182,77314119.7:140% (1,100)
2015-162,80314419.5:142% (1,188)
2010-112,85814320.0:130% (844)
2000-012,94514120.9:14% (105)
1990-912,52712120.9:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for LAKE BRANTLEY HIGH SCHOOL.

About LAKE BRANTLEY HIGH SCHOOL

LAKE BRANTLEY HIGH SCHOOL is a large high school. Its address is in ALTAMONTE SPRINGS, Florida. The school covers grades 9 through 12 and reported 2,813 students in 2024-25. That puts enrollment 172% above the 1,035-student average for high schools in Florida.

LAKE BRANTLEY HIGH SCHOOL is one school in a 74-school district, SEMINOLE, which enrolls 63,934 students.

The biggest share of students at LAKE BRANTLEY HIGH SCHOOL, 45%, is White. Beyond that, enrollment is 35% Hispanic, 12% Black, 4% multiracial, and 3% Asian. In Seminole County overall, about 59% of residents are White. On the diversity index, which measures the chance that two random students are from different groups, LAKE BRANTLEY HIGH SCHOOL scores 66%.

Based on 122.5 full-time-equivalent teachers, LAKE BRANTLEY HIGH SCHOOL has a ratio of 23.0:1. That is in line with the 23.5:1 average for high schools in Florida. Eligibility for free or reduced-price lunch stands at 44%.

LAKE BRANTLEY HIGH SCHOOL holds a B- allk12 Grade, placing it above 52% of Florida public high schools.

On BeatsExpectations, LAKE BRANTLEY HIGH SCHOOL is 6.5 points below its prediction, a result in the middle 80% of Florida schools.

In Seminole County, median household income comes to about $85,761, a bachelor's degree or higher is held by about 43% of adults, and the poverty rate is about 6%. The county's public schools total 77, with about 63,934 students.

A public school about 0.3 miles away, FOREST CITY ELEMENTARY SCHOOL, is the closest to LAKE BRANTLEY HIGH SCHOOL. LAKE BRANTLEY HIGH SCHOOL has at least 8 other public schools within five miles. Among 9 nearby schools that report test results, LAKE BRANTLEY HIGH SCHOOL ranks 7th on proficiency.

The school's setting, by NCES definition, is Suburb: Large: in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Enrollment increased by 7% across 4 years, from 2,634 in 2020-21 to 2,813 in 2024-25. The ratio of students to teachers went from 25.6:1 to 23.0:1 over the same years.

The discussion board for LAKE BRANTLEY HIGH SCHOOL is open to topics like special education services, counseling, and support programs. Teachers and staff are welcome to share updates too.

Seminole County at a glance

View full county profile
Population
481,470
Census ACS
Median income
$85,761
Household, ACS
Bachelor's+
43%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
77
63,934 students

Quick facts

School name
LAKE BRANTLEY HIGH SCHOOL
District
SEMINOLE
Address
991 SAND LAKE RD, ALTAMONTE SPRINGS, FL 32714
Phone
(407) 746-3450
County
Seminole County
Level
High
Grade range
09–12
Total enrollment
2,813
Teachers (FTE)
123
Student–teacher ratio
23.0:1
Free and reduced lunch
1,225 (44%)
Locale
21-Suburb: Large
NCES ID
120171001888
Charter school
No
Virtual school
No

Related schools

Other schools in SEMINOLE
Other schools in ALTAMONTE SPRINGS
Nearby schools

Frequently asked questions

About LAKE BRANTLEY HIGH SCHOOL
How large is LAKE BRANTLEY HIGH SCHOOL?
LAKE BRANTLEY HIGH SCHOOL enrolls approximately 2,813 students in grades 09-12.
What age range does LAKE BRANTLEY HIGH SCHOOL serve?
LAKE BRANTLEY HIGH SCHOOL serves students from grade 09 through grade 12.
How many students per teacher at LAKE BRANTLEY HIGH SCHOOL?
Approximately 23.0:1 students per teacher at LAKE BRANTLEY HIGH SCHOOL.
What is the racial breakdown of students at LAKE BRANTLEY HIGH SCHOOL?
At LAKE BRANTLEY HIGH SCHOOL, the student body is approximately 45% White, 35% Hispanic, 12% Black, 3% Asian, 4% Two or more.
Is LAKE BRANTLEY HIGH SCHOOL public or private?
LAKE BRANTLEY HIGH SCHOOL is a public K-12 school, overseen by SEMINOLE.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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