Finding Your Path to Success with September School

Our High School Admissions Process and Private School Cost

September School is a supportive learning community that helps teens with both academic success and the skills needed to thrive after high school. Our relationship-based learning model provides a supportive environment that helps kids accept and cherish their differences as they learn how to relate to the world in the way that’s right for them.

When considering private school cost, we understand that families must weigh their options carefully. At September School, we are committed to helping teens who would benefit from our programs and community culture attend our school.

Two-Way Introductions

The best relationships begin with honesty and openness. To get the admissions process going, we’d like to meet you. If you and your teen are interested in learning more about September School and want to begin the admissions process and understand what goes into private school cost, we think seeing our process and environment firsthand is the first step to getting to know our community and whether the September School is the right place for you.

We invite you to visit September School to learn more about our academic programs, community, and how our students thrive. Your child can shadow other students for a day to see how September School works for them—and to see how they can fit into our community, too. We believe relationships are key to succeeding, no matter who you are or how you learn.

Call our office at (303) 443-9933 or contact us online to set up a time to visit, shadow other students, or take a class or two. You want to know about our school, and we’re interested in learning about you, too! We want to know your approach to life, your interests, and what interests you in our progressive learning approach. We offer rolling admission throughout the year and welcome all students at whatever stage they are.

September School Specifics

Our admission process is fairly straightforward. Here’s how it all works:

  • September School is a Boulder, CO-based independent, private high school. As you consider the private school cost, rest assured our board and community are focused on providing financial aid and tuition reduction programs for families where possible.

    As a need-based process, we work to provide some assistance to about one-quarter of our families. For all families, tuition is fixed at a flat rate when a student enrolls. Learn more about September School tuition and financial aid programs.

  • Following your school visit, an application for enrollment at September School requires completed and signed paperwork. We work to expedite applications where possible, but completed documents and payment are required before students can join the school. Learn more about enrollment and access the application document.

Getting to Know You and Your Teen

We believe addressing the social and emotional learning of students is just as important as academic learning. In fact, success in one of these areas lays the foundation for success in the other. We help our students learn about and trust themselves as they learn how to build trust with others and you. What’s right for one student isn’t necessarily right for another; by creating different paths and opportunities for students to show what they’ve learned, we share knowledge together and embrace each others’ differences as we walk the path of learning.

Creating a Path to Success

We are not a high school of last resort or a therapeutic school. Our programs are sought after because we recognize that an individualized approach to education can accelerate learning and help students embrace their individuality on the way to adulthood. Our path to learning uses collaboration, community and teamwork. We strive to build trust and make sure students are seen, heard, and celebrated.

While non-traditional, we believe our approach is common sense. We’re focused on relationship-based learning, emphasizing diversity and inclusion, responsibility and community, teamwork, and communication. With low student-teacher ratios and student-counselor ratios, we provide one-on-one interaction as much as possible to get to know your child, what they need, and what they can bring to the world. Our goal is to encourage the strengths and talents that are already there while providing the skills and education to help your teenager thrive, both in high school and in the world after.

To schedule a time to visit September School, give us a call at (303) 443-9933 or contact us online. We are here to welcome you as you learn about our community!

Why Give to September School?

As an independent school, September School operates without financial support from local, state and federal governments. 

Our unique relationship-based education approach means that we maintain very low student: teacher and student: counselor ratios. And, unlike traditional schools, our curriculum takes our students outside the classroom walls and into the world. Our budget is shaped by these needs.

Many families new to private schools are surprised to learn that tuition doesn’t cover the full cost of private school education. At September School, only 80-90% of our budget is covered by tuition and fees. We make up the difference with grants and through our fundraising programs, including:

  • Annual Fund
  • Community Circle
  • Capital Campaigns


The Annual Fund provides unrestricted funds to our school and runs from July 1 to June 30 every year. Our goal is that 100% of September School families pledge to the Annual Fund, in a way and at a level that works for them:

Monthly subscription (recommended monthly amount: $40)

Annual contribution (recommended annual amount: $500)

Your gift of any amount supports the people and programs that make our community so special. When we work together, it all adds up. 


Through our Community Circle, you work with us in a more powerful way to build financial sustainability and our continued growth. Community Circle donors pledge to support September School with gifts of $5,000 or more.

Friend ($5000-$9999)

Partner ($10,000 or more)

In recognition of your generosity, Community Circle members receive:

Inclusion of your name on the school’s website and in all appropriate fundraising materials

Mention of your name at key school events, including graduation

Invitation to special Community Circle events

For donations of more than $25,000, you may designate a place on our campus to put your name.


In 2019, we celebrated our 45th year with the completion of Phase 1 of our new campus at 96 Arapahoe in Boulder, CO. Nestled at the mouth of Boulder Canyon, our historically landmarked campus provides extraordinary access to the outdoors, including Boulder Creek and many local trails, as well as to the extended classroom in Boulder and the surrounding area. 

The complete buildout of our new campus will allow us to offer world-class education to our students and expand our enrollment to 80 students. 

Phase 2: renovate the historic barn (next to our primary building) and address interim facilities needs

Phase 3:  Build a new community space 

Your gifts to our Capital Campaign will help us continue this important and timely work.


Give online--it’s fast, safe and secure

Click here to make your gift via Paypal.

Click here to make your gift via

Write a check! Make checks payable to:

September School

ATTN:  [Name of program: Annual Fund, Community Circle or Capital Campaigns]

96 Arapahoe Ave

Boulder, CO 80302

Donate stocks or disbursements from your IRA

You may also make donations to September School in stock or via qualified charitable donations via disbursements from your IRA directly to September School. 

For these types of donations, please consult your tax advisor first and then contact the school directly to make specific arrangements prior to making any transfer.


Remember, many employers match their employee’s gifts to non-profits. You may be able to double or triple the amount September School receives by submitting matching gift forms, and you will receive credit for the total gift!


September School is a 501c3 charitable organization. All donations to our school are tax-deductible.

Learn more about giving to September School

If you’re interested in helping us re-awaken the love of learning through a financial gift and want to learn more, please contact us at or 303-443-9933.

Take the next step to learn more about September School