John Ehret High School

John Ehret High School is one of the sprawling four-year high schools in Marrero, Louisiana, run under Jefferson Parish, with 1,850 students on its rolls from grades 9 through 12. That puts it 160% bigger than the typical public school in Louisiana, which averages around 711 students.

Jefferson Parish runs 74 schools in total, collectively educating 46,790 students. John Ehret High School is one of those campuses.

Demographically, John Ehret High School shows that the most-represented group is Black (54%), with the rest of the student body spread across multiple groups. Other groups include 22% Hispanic, 15% White, 6% Asian, 3% multiracial. That is meaningfully more Black than the county at large, where the share is closer to 26%.

Looking at school resources, On paper, John Ehret High School has 96 full-time-equivalent teachers, translating to a class-load average of around 19.3:1. That figure is higher than the state norm's 18.0:1 average. About 75% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

Around the school, community-level numbers for Jefferson Parish indicate median household income runs about $65,252, roughly 31% of adults have completed at least a four-year degree, and the poverty rate sits near 13%. John Ehret High School is one of 86 public schools in Jefferson Parish (combined enrollment of about 47,983 students).

Nearest neighbor: Ella C. Pittman Elementary School, around 0.7 miles off. Within five miles, there are 8 other public schools.

Geographically, the school is in a commuter-belt area.

Over the past 7-year window. Over the past 7-year window, the student count edged down 16%: 2,193 students in 2018 compared to 1,850 in 2025. Hispanic enrollment moved from 13% to 22% across the same window. Class-load math has pulled in: from 23.2:1 in 2018 to 19.3:1 in 2025.

Within the allk12 community for this school, recent activity here tends to focus on enrollment questions, classroom assignments, and PTA news. The community welcomes input from current and former families.