A leading independent, diverse, co-ed school that prepares students in nursery through grade 12 for the world they will inherit. Located in Rochester, NY. 


We are accepting applications for the 2022-2023 school year!

Join us for an in-person tour, student visit or play date! Come see if AC is the right fit for your family.

Learn more about AC today




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Virtual Tour

Come inside Allendale Columbia School with our virtual school tour designed by AC alum, Yuming Ma ’16. You’ll see our courtyard, dining commons, Curtis Performance Center, Design and Innovation Labs (DAIL), gym, after-school care in the Rainbow Room, and various classrooms around campus.

Fast Facts


Authentic Learning in Action

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Allendale Columbia Rolls Out Equity Statement

Posted on January 10th, 2022

“We are extremely proud of the work that has been accomplished,” said Head of School Shannon Baudo. “This is a long-term process. As a school community, we are committed to staying the course and continuing to nurture an inclusive environment where everyone is safe, welcome, and celebrated.”  
Read More →

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AC Participates in Computer Science Education Week

Posted on December 16th, 2021

At AC, students are exposed early to the world of computer science through robotics, coding, and more.  
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Center for Creativity & Entrepreneurship Produces First-Ever Student Makers Market

Posted on December 16th, 2021

“The makers market had a really nice turnout with many people who showed up to support,” said Ayla. “I learned a lot through planning this event and was happy to be able to include so many of my friends who received recognition on their handmade products.”  
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At AC, We’re Adapting

The world is different right now, and AC has the ability to adapt with it. Our talented, flexible faculty and staff have adjusted seamlessly to the “new normal”, and they are serving as role models for our students during this challenging time. Make a gift today and help us to support our students academically, socially, and emotionally. 
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What It’s Like at AC

“There is no other school that could even compare or come close to what AC has to offer. We agreed that the family atmosphere, small class sizes, and the teacher-to-student relationship was what made AC such a valuable part of our lives.”

– Deb Person, P’26, talking with an AC alum from the class of 1983

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Contact Us

Ready to check out AC for yourself?  The only way to know if it’s right for you is to come visit. You can walk in any Wednesday and meet with Shelby, Lisa, or Shannon on our Admissions team. You can also sign up for our next open house, contact us through our online inquiry form, call us at 585.641.5344, or start your application online today!