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Our Schools

Our network is made up of two great campuses, Sage International Boise and Sage International Middleton. Our Boise campus began with a simple idea – parents and children need a different option than the education they could find at other area schools. Our parents want an international education, a rigorous learning environment, authentic teachers and a school that embraced innovation and change.

The Sage International School of Boise opened in 2010 with 211 students. By 2014, there were nearly 900 in Grades K-11. Today our Boise campus routinely enrolls 1000 students in four different International Baccalaureate (IB) programs in Kindergarten through 12th grades. Sage-Boise is one of only three public schools in the United States that offers all four IB programs.

In 2019, the Sage International Network of Schools opened a second campus in Middleton, Idaho. Middleton is a lovely and lively community that is in the rapidly growing area of the western Treasure Valley of Idaho. The Sage Middleton campus has enrolled 400+ students in Grades K-11 and is still growing. It is authorized to offer the IB’s Primary Years Programme (K-5), Middle Years Programme (6-10), and is a Candidate School* for the Diploma Programme (11-12). These are schools that share a common philosophy—a commitment to high quality, challenging, international education that Sage International Middleton believes is important for our students.


*Only schools authorized by the IB Organization can offer any of its four academic programmes: the Primary Years Programme (PYP), the Middle Years Programme (MYP), the Diploma Programme (DP), or the Career-related Programme (CP).  Candidate status gives no guarantee that authorization will be granted. For further information about the IB and its programmes, visit

We are Public Charter Schools

Sage International Schools are public charter schools, meaning they are tuition-free schools of choice. We are K-12 (or growing to K-12) public schools. Inquiry-based learning creates caring and curious students who ask questions and are equipped to solve big problems. Your child can start here in Kindergarten and graduate high school from our Sage Network!

“Public charter schools are unique public schools that are allowed the freedom to be innovative while being held accountable for advancing student achievement…”

Our Vision

Our mission compels our schools to engage students within an inclusive international learning community, challenging all members to take risks and contribute locally and globally through open-minded inquiry. As public charter schools which offer a compelling choice to our families. We believe that all students deserve a well-rounded education that emphasizes strong reading, writing and mathematical skills as well as the learning of a second language, engaging with art, design, and service to their community. Sage schools offer a rigorous learning environment with caring teachers and support staff who place children’s learning and growth at the center of decision making.

Take a moment to view the short video below. These are testimonials from IB graduates from around the world sharing how the program altered the course of their lives. Your child could have a similar story to tell years from now.

Watch "IB Alumni at 50" Video
IB Alumni Video

We invite you to learn more about the IB here.


The International Baccalaureate at Sage International

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