PLEASE NOTE: The 2021/2022 Gateway application will go offline on June 16, 2022 to prepare for the new application year.
You must submit your application by that date or your data will be lost. If you do not submit by that date, you will need to create a new application starting on or about July 1, 2022 for the new 2022/2023 application year. Please also save a copy of all your data locally since it will be removed from the online application system.

Thank you for your interest in Millbrook School.



Millbrook School is a coeducational, college preparatory boarding school for students in grades 9-12. Our 800-acre campus is located in Millbrook, NY, and students here have the benefit of a challenging academic program, competitive athletics, fine and performing arts, a tradition of service and environmental stewardship, and abundant leadership opportunities. We look forward to receiving your application and learning more about you. Please feel free to contact our admission office if you have any questions at 845-677-6873 or admissions@millbrook.org.

Millbrook welcome page

For assistance or to view answers to frequently asked questions, visit the Help page

For assistance, please contact the Gateway to Prep Schools directly.