The top reported proficiency rate is 69% in English language arts. The lowest is 53% in Social studies.
Original Research by School Decision on Lake Harbor Middle School
Lake Harbor Middle School sits in Mandeville, a lakefront community on the north shore of Lake Pontchartrain that grew rapidly after the Causeway connected it to New Orleans. Mandeville’s civic life is centered on the lakefront and the Mandeville Trailhead, which anchors the Tammany Trace rail-trail and hosts a Saturday market and amphitheater. The city describes itself as family-friendly with good schools, and its built environment is largely suburban, with separated school campuses typical of a parish-wide district. Lake Harbor itself is a regular public school serving grades four through six, operated by the St. Tammany Parish Public School system. The district brief did not turn up any recent major changes, so this profile reflects the school as it is currently running.
The school’s student body is predominantly white, with smaller shares of Black, Hispanic, Asian, and multiracial students, roughly mirroring the surrounding community. About a quarter of students qualify for free or reduced-price meals, a lower share than in many nearby districts. This is a relatively moderate level of economic diversity, not one of deep poverty. No data was available on the share of students receiving special education services or English learner support, so a parent who needs those services would want to confirm availability directly with the school.
Lake Harbor’s state assessment results from Louisiana’s LEAP 2025 tests, which serve as the primary measure of academic performance, show a mixed picture. In both math and English language arts, a large majority of students scored at the proficient level, which is a strong showing. Science and social studies proficiency rates were notably lower, with roughly half of students reaching that bar. The school has only one year of reported data for the current test format, so there is no trend yet to indicate whether these results represent a new baseline or a single snapshot. The proficiency measure uses Levels 4 and 5 as the cut for proficiency, a standard that state accountability systems sometimes set higher than in other states, which may affect how these numbers read to families coming from elsewhere. Still, the math and ELA results are clearly a relative strength for the school. The science and social studies numbers are softer, something a parent may want to look into further with the school, especially if those subjects matter to their child’s pathway.
Because Lake Harbor does not serve high school grades, there is no graduation rate to report. The school environment section returned no information on discipline rates, chronic absenteeism, or staffing ratios, so the full picture of school climate is incomplete from the data we have. A parent might ask about class sizes, teacher experience, and how the school handles discipline to get a better sense of day-to-day life.
The comparison set intended for this school was districts within St. Tammany Parish, but with only two districts in the county and only Lake Harbor carrying test data in this year’s release, the system could not produce a meaningful comparison. The school stands on its own data here.
Housing in Mandeville is significantly more expensive than the state median and close to the national average, which reflects the area’s desirability as a commuter community with lake access and strong schools. Rent is also above the state norm, adding to the cost of entry. The national unemployment rate at the time of this data was modest, and mortgage rates were elevated, which affects affordability for families moving in.
For a family considering Lake Harbor, the academic picture is strongest in math and English, with science and social studies trailing. The school serves a population that is not economically distressed by regional standards, and the community is suburban and lake-oriented, with outdoor amenities and a commuter connection to New Orleans. A parent will want to fill in the missing pieces on special services and school climate before making a decision.
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