Green Tree Preparatory Academy
🇺🇸 Official data · 2025Milwaukee, Wisconsin 53223 · Milwaukee School District
#430 of 446 high schools in Wisconsin
#16262 of 16,910 nationally
About Green Tree Preparatory Academy
Green Tree Preparatory Academy is a charter high located in Milwaukee, in the Milwaukee School District school district of Wisconsin, United States. It caters for Grades 6–12. In 2025 it enrolled 535 students. Publicly funded charter schools operating under a performance contract; free to attend.
Its Success Index (US) is 13.7 out of 100, placing it in the lower 50% of high schools in United States and 430th of 446 ranked high schools in Wisconsin. Its strongest component is community advantage (fewer free/reduced-price lunch) (18th percentile), and its weakest is students per teacher (7th percentile).
Other published figures: enrollment 535.
There are 164 schools in Milwaukee; Green Tree Preparatory Academy ranks 77th of 155 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)–
- Reading proficiency (30%)–
- Community advantage (fewer free/reduced-price lunch) (25%)85.6%
- Students per teacher (15%)23.3
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Green Tree Preparatory Academy by the official sources.
- Enrollment
- 535
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 85.6%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 23.3
- Enrollment divided by FTE teachers; not class size.
Free academic assessment
Is your child on grade level in reading and math?
Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Schools near Green Tree Preparatory Academy
Closest schools by straight-line distance, with their Success Index (US).
Barton Elementary
Milwaukee · Public elementary · Grades PK–5
283 students · 566 m away
Hawthorne Elementary
Milwaukee · Public elementary · Grades PK–5
259 students · 1.1 km away
Thoreau Elementary
Milwaukee · Public elementary · Grades PK–8
353 students · 2.1 km away
Milwaukee Scholars Charter School
Milwaukee · Charter elementary · Grades PK–8
696 students · 2.4 km away
Thurston Woods Elementary
Milwaukee · Public elementary · Grades PK–8
256 students · 2.5 km away
Brown Deer Middle/High
Brown Deer · Public high · Grades 6–12
904 students · 2.6 km away
Kluge Elementary
Milwaukee · Public elementary · Grades PK–5
301 students · 2.6 km away
Morse Mid
Milwaukee · Public middle · Grades 6–8
383 students · 2.7 km away
Milwaukee Sign Language Elementary
Milwaukee · Public elementary · Grades PK–8
384 students · 2.7 km away
Glen Hills Middle
Glendale · Public middle · Grades 4–8
483 students · 2.7 km away
Similar schools
Charter high schools in Wisconsin with a comparable Enrollment.
Carmen Mid/Hi Northwest Campus
Milwaukee · Charter high · Grades 6–12
526 students
Harborside Academy
Kenosha · Charter high · Grades 6–12
572 students
Dr Howard Fuller Collegiate Academy
Milwaukee · Charter high · Grades 6–12
608 students
Tenor High
Milwaukee · Charter high · Grades 9–12
651 students
Carmen Hi Southeast Campus
Milwaukee · Charter high · Grades 9–12
679 students
Carmen High School of Science and Technology South Campus
Milwaukee · Charter high · Grades 9–12
382 students
Frequently asked questions
Is Green Tree Preparatory Academy a good school?
Green Tree Preparatory Academy has a Success Index (US) of 13.7 out of 100 (Lower 50% of high schools in United States) and ranks #430 of 446 in Wisconsin. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Green Tree Preparatory Academy rank in Wisconsin?
Green Tree Preparatory Academy ranks #430 of 446 high schools in Wisconsin and #16262 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Green Tree Preparatory Academy?
Green Tree Preparatory Academy had 535 students in 2025.
Is Green Tree Preparatory Academy a elementary school or a high school?
Green Tree Preparatory Academy is classified as a high covering Grades 6–12. It is a charter school.
What other schools are near Green Tree Preparatory Academy?
There are 10 schools within 15 km of Green Tree Preparatory Academy; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.