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SCHOOL COMMUNITY·ST. TAMMANY PARISH·NCES 220165001535

Lake Harbor Middle School

1700 Viola Street, Mandeville, LA 70448 · (985) 674-4440 · St. Tammany Parish
GRADES 04–06MIDDLE22-SUBURBREGULAR SCHOOL582 STUDENTS
A
allk12 Grade
Scored higher than 85% of Louisiana public middle schools
  • A+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.
  • C-Three-year trend Change in reading and math proficiency over the last three test years.

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

Enrollment
582
Middle
DISTRICT 524 · STATE 440
Student : Teacher
13.3:1
44 FTE teachers
DISTRICT 12.5:1 · STATE 41.0:1
Free / Reduced Lunch
28%
165 students
DISTRICT 48% · STATE 70%
Community
5
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 420535%
Grade 519233%
Grade 618532%
Student demographics
39%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 57% · STATE 65% · US 70%
White
44977%
DISTRICT 61% · STATE 41% · US 43%
Hispanic
427%
DISTRICT 12% · STATE 12% · US 30%
Black
5810%
DISTRICT 22% · STATE 42% · US 15%
Asian
71%
DISTRICT 1% · STATE 2% · US 6%
Two+
224%
DISTRICT 5% · STATE 4% · US 5%
Native American
20%
DISTRICT 0% · STATE 1% · US 1%
Pacific Islander
20%
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
29050%
Female
29250%

Discussions

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Test scores

LEAP 2025 2025-26 . % Mastery+
English Language Arts
68.0%
LA avg 41.8% . -6.0pp since 2022
Math
70.0%
LA avg 34.2% . +0.0pp since 2022

What this means: On the LEAP 2025, Louisiana's statewide test, about 68 of every 100 students at this school read and write at grade level and about 70 of 100 do math at grade level. Across all Louisiana schools, those numbers are about 42 and 34. Reading and writing scores are down about 6 points since 2022, while math scores have held steady.

LEAP 2025 results by year

School yearEnglish Language ArtsMath
2025-2668.0%70.0%
2024-2569.0%68.0%
2023-2472.0%69.0%
2022-2374.0%70.0%
% Mastery+, all students and all tested grades.
Source: LEAP 2025. 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
65.3%
composite math + reading, all grades
Predicted
64.0%
based on LA schools with similar FRL share
Beats by
+1.3pp
above demographic expectation

What this means: About 65% of students here test proficient in math and reading, compared with the roughly 64% typical for Louisiana 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 Louisiana'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 Harbor Middle School

Lake Harbor Middle School's state test result (65.3% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Lake Harbor Middle School this school58228.4%65.3%
Tchefuncte Middle School
Mandeville
68225.5%67.7%
Benton Middle School
Benton
81730.1%50.3%
Benton Intermediate School
Benton
75433.3%60.3%
Mandeville Junior High School
Mandeville
51022.9%62.8%
Gayle Sloan Middle School
Mandeville
50221.7%64.3%
Matched among Louisiana middle 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 Harbor Middle School ranks

Among middle schools
MeasureThis schoolIn LouisianaIn St. Tammany Parish
State test proficiency
ranked highest first
65.3%#7 of 213#2 of 19
Math proficiency
ranked highest first
70.0%#4 of 210
▲ 1
#1 of 19
no change
Reading proficiency
ranked highest first
68.0%#14 of 213
▼ 2
#4 of 19
▲ 1
3-year test score change
ranked biggest drop first
-3.0pp#41 of 197#9 of 19
Enrollment
ranked largest first
582#63 of 220#9 of 19
Students per teacher
ranked fewest first
13.3:1#90 of 195#9 of 18
Diversity index
ranked most diverse first
38.8%#149 of 195#14 of 18
Free and reduced lunch
ranked highest share first
28.4%#209 of 214#15 of 19
Enrollment change since 2017-18
ranked steepest decline first
-10.7%#127 of 162#14 of 15
Ranked against other public middle 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
582
+94 (+19%) vs 2020
-10% since 2010-11, when it was 644
Student : Teacher
13.3:1
was 15.7:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2558243.613.3:128% (165)
2023-2460343.313.9:128% (166)
2022-236022920.8:124% (144)
2020-214883115.7:128% (136)
2017-1865231.720.5:122% (144)
2015-166474315.1:127% (177)
2010-116444315.0:129% (185)
Source: NCES Common Core of Data. Rows are the federal collections on file for Lake Harbor Middle School.

Since 2017-18: students down 11% (652 to 582); teachers up 37% (31.7 to 43.6).

About Lake Harbor Middle School

Lake Harbor Middle School is a mid-sized middle school. Its address is in Mandeville, Louisiana. In all, 582 students attend the school in grades 4 through 6. It has 32% more students than the average for middle schools in Louisiana (about 440).

Enrollment across the 55 schools in St. Tammany Parish totals 35,956 students.

About 77% of the student body at Lake Harbor Middle School is White. Other groups make up 10% Black, 7% Hispanic, and 4% multiracial. St. Tammany Parish residents are about 74% White, a similar share. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 39%.

Classroom staffing at Lake Harbor Middle School totals 43.6 full-time-equivalent teachers, and the student-to-teacher ratio is 13.3:1. Compared with the 41.0:1 average for middle schools in Louisiana, this school's ratio is lower. Federal data show 28% of students (165) are eligible for free or reduced-price lunch. The average for public schools in St. Tammany Parish is 44%.

Lake Harbor Middle School earns an A on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 85% of Louisiana public middle schools.

In Louisiana, Lake Harbor Middle School is in the middle band of BeatsExpectations: 65.3% actual against a predicted 64.0%.

In St. Tammany Parish, where the school is located, median household income comes to about $81,202, the share of adults with a bachelor's degree or higher is 38%, and roughly 9% of residents are in poverty. The county has 56 public schools and about 36,212 students.

A public school about 0.1 miles away, Magnolia Trace Elementary School, is the closest to Lake Harbor Middle School. Inside a five-mile radius, there are at least 8 other public schools. The school's 65.3% average proficiency ranks 1st among 7 nearby schools.

Under the NCES locale system, Lake Harbor Middle School is Suburb: Mid-size.

Federal enrollment counts rose from 488 (2020-21) to 582 (2024-25). In 2020-21, the student-to-teacher ratio was 15.7:1; by 2024-25 it was 13.3:1.

This page is set up for the Lake Harbor Middle School community to discuss homework, tutoring, and testing dates. Current and former families are welcome to add their experience.

St. Tammany Parish at a glance

View full county profile
Population
272,421
Census ACS
Median income
$81,202
Household, ACS
Bachelor's+
38%
Adults 25+
Poverty rate
9%
Below federal line
Schools in county
56
36,212 students

Quick facts

School name
Lake Harbor Middle School
District
St. Tammany Parish
Address
1700 Viola Street, Mandeville, LA 70448
Phone
(985) 674-4440
County
St. Tammany Parish
Level
Middle
Grade range
04–06
Total enrollment
582
Teachers (FTE)
44
Student–teacher ratio
13.3:1
Free and reduced lunch
165 (28%)
Locale
22-Suburb: Mid-size
NCES ID
220165001535
Charter school
No
Virtual school
No

Related schools

Other schools in St. Tammany Parish
Other schools in Mandeville
Nearby schools

Frequently asked questions

About Lake Harbor Middle School
What is the total enrollment at Lake Harbor Middle School?
Lake Harbor Middle School enrolls approximately 582 students in grades 04-06.
What grades does Lake Harbor Middle School serve?
Lake Harbor Middle School serves grades 04-06.
How many teachers does Lake Harbor Middle School have?
Lake Harbor Middle School employs 44 FTE teachers, for a student-to-teacher ratio of 13.3:1.
What is the racial breakdown of students at Lake Harbor Middle School?
At Lake Harbor Middle School, the student body is approximately 77% White, 7% Hispanic, 10% Black, 1% Asian, 4% Two or more.
Is Lake Harbor Middle School public or private?
Lake Harbor Middle School is a public K-12 school, overseen by St. Tammany Parish.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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