John I. Leonard High School
Greenacres, FL · High School · Grades 9-12
John I. Leonard High School is a high school in Greenacres, FL with 3,549 students enrolled and a 43% proficiency rate. Part of Palm Beach. NCES data from the U.S. Department of Education.
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About This School
John I. Leonard High School is a high school located in Greenacres, Florida. The school serves 3,549 students in grades 9-12. The student-to-teacher ratio is 20.3:1.
According to EDFacts assessment data, 43% of students meet grade-level proficiency standards in combined math and reading. The school reports a 71% graduation rate.
67% of students qualify for free or reduced-price lunch, indicating the school serves a predominantly low-income community.
John I. Leonard High School is part of the Palm Beach in Florida. The school receives Title I federal funding.
How This School Compares
John I. Leonard High School has 3,549 students enrolled, making it larger than the average school in Palm Beach (829 students). Its 43% proficiency rate is 5 percentage points below the district average of 48%. Compared to the Florida state average of 48%, the school performs 5 points lower. The 20.3:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
John I. Leonard High School has 3,549 students enrolled in grades 9-12. The student-to-teacher ratio is 20.3:1.
According to EDFacts data, 43% of students at John I. Leonard High School meet grade-level proficiency standards in combined math and reading assessments.
John I. Leonard High School has a 71% graduation rate, measuring the percentage of students who graduate within four years.
John I. Leonard High School is part of the Palm Beach in Greenacres, Florida. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
this entity is one of the data points covered by this site’s U.S. K-12 school outcomes and enrollment dataset. The detail above comes directly from NCES Common Core of Data and EDFacts; the context that follows situates the headline numbers against the broader distribution across U.S. public schools and districts.
The methodology behind every numeric value on this page is publicly documented on the NCES Common Core of Data and EDFacts portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. public schools and districts with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: NCES Common Core of Data, 2026.