Jacksonville STEM Academy, 900 Acorn St.: 6-8, 281 students in 2024-25, a B in Florida's 2026 school grades.

Last checked Oct. 10, 2026. Sources: the school’s website, Duval County Public Schools’ school locator map, school hours page and calendar, the Florida Department of Education’s 2026 school grades file, and the federal NCES school directory.

Jacksonville STEM Academy is the Duval County Public Schools magnet middle school for grades 6 to 8 at 900 Acorn St. The campus is inside Jacksonville city limits.

Who to call
Address 900 Acorn St., Jacksonville, FL 32209
Phone 904-630-6900
Grades Grades 6 to 8
District Duval County Public Schools
State school number 16-1561

Principal

Principal Leon Mungin, according to the school’s staff directory.

Enrollment and teachers

  • Federal count: 281 students in the 2024-25 school year, with 15 full-time-equivalent classroom teachers, according to the NCES directory. That is about 19 students per teacher.

State report card

Florida grades every public school A to F on the share of possible points it earns on the measures in the state’s 2026 school grades file: test scores, learning gains and, for middle and high schools, acceleration and graduation. The file sets an A for middle schools at 64% of points or more.

School year Grade
2025-26 B (57% of possible points)
2024-25 C
2023-24 C

From the state’s 2026 school grades file, the share of students scoring on grade level on the state tests in 2025-26:

  • English language arts: 34%
  • Math: 38%
  • Science: 41%
  • Social studies: 62%
  • Middle school acceleration (a state grading measure): 89%

The same file lists 100% of the school’s students as economically disadvantaged and the school as a Title I school, which receives federal aid for schools serving low-income families.

The full report card is on the state’s Florida school report cards site. It is an interactive dashboard; the figures above come from the downloadable file.

Admission

Jacksonville STEM Academy is a dedicated magnet school: it has no attendance zone, and every student applies. The district’s list of dedicated magnet schools describes its program as science, technology, engineering and math (STEM). Families apply through the district’s magnet lottery, which for the 2026-27 school year ran Dec. 1, 2025, to Jan. 31, 2026; seats left after the lottery are offered through controlled open enrollment. Dedicated magnet schools set academic standards for entry and for staying enrolled, according to the district’s magnet standards page.

Calendar and bell times

Classes run 8:25 a.m. to 3:25 p.m., according to the district’s 2026-27 school hours, which list the school as an exception to the standard schedule.

From the district’s 2026-27 calendar:

  • Monday, Oct. 12: no school for students (employee planning day)
  • Wednesday, Nov. 11: schools closed for Veterans Day
  • Nov. 23-27: schools closed for Thanksgiving week
  • Dec. 21 to Jan. 1, 2027: winter break
  • Monday, Jan. 4, 2027: employee planning day, no school for students
  • Monday, Jan. 18, 2027: schools closed for Martin Luther King Jr. Day
  • March 15-19, 2027: schools closed for spring break week
  • Friday, May 28, 2027: last day of school

Programs

The district’s magnet programs list shows a magnet program here: Science, Technology, Engineering Math (STEM). For the next level, the list names Andrew Jackson High School, Darnell-Cookman School of Medical Art, Edward H. White High School, Frank H. Peterson Academies of Technology, Jean Ribault High School, Paxon School for Advanced Studies, Riverside High School, Samuel W. Wolfson School for Advanced Studies, Stanton College Preparatory and William M. Raines High School as the continuing programs.

More on Jacksonville schools

Frequently asked questions

What grades does Jacksonville STEM Academy serve?

Grades 6 to 8. It is a Duval County Public Schools magnet middle school at 900 Acorn St. in Jacksonville.

What is Jacksonville STEM Academy’s school grade?

Jacksonville STEM Academy earned a B in Florida’s 2026 school grades, with 57% of possible points. It earned a C in 2025.

What time does Jacksonville STEM Academy start?

Classes run 8:25 a.m. to 3:25 p.m., according to the district’s 2026-27 school hours.