September School

September School is a community of learners committed to relationship based education. We show up as our genuine selves and we engage in learning about our world and each other. Together. Your gift will help us support students on their journey to self discovery- through graduation and beyond.

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General Information

Official Name
September Schools Inc​​​​​​​
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Date Established
Offers Additional Colorado State Tax Credit
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Headquarters Address
96 Arapahoe Ave
Boulder, CO 80302
Colorado Location
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Mission Statement

September High School is an intimate and supportive community that fosters individual development and reawakens the love of learning. We empower our students to be critical thinkers, lifelong learners, and responsible citizens.

Organization History

At September High School, we have thrived for over four decades as Boulder's longest running independent high school. In the fall of 1973, September High School was one of 5000 independent schools across the nation that opened their doors to students for the first time. Despite the heartfelt efforts put forth by many people, most of these schools were unable to sustain themselves over time. By 2001, all but 2% of these schools had to close.

September School has been successful in large part because of our energetic, committed faculty, who have inspired hundreds of students. We have cared for our community and, in turn, our community has cared for us; over the years we have transformed the lives of hundreds of teens in this community and our community has supported the school's growth into the thriving educational center that it is today.


September High School has made a huge difference in all of our lives. Our son enjoys going to school and comes home full of information and stories about his day. -Parent

I had an average GPA of below 2.0 at (omitted) and now I am getting above a 3.0. My parents are proud of me, and I don't dread going to school any more. I love this school. -Dylan

If September School hadn't come into our lives, I am certain my daughter would have dropped out of school altogether. I am forever grateful for how the school welcomed her into their community. -Parent

This school saved my life. -Brendan

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