First here,
then anywhere.

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.

What Could You Be Doing at AC?

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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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3 Years in a Row: AC Qualifies for VEX World Championships

Posted on March 11th, 2019

For the third year in a row, an Allendale Columbia School team of fifth-graders earned an invitation to the VEX IQ Robotics World Championships April 28th-30th. The MAGMAS won the Excellence Award. They will be one of 400 Middle School teams from around the globe collaborating and competing at Worlds.  
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Sophomore Forum Tackles Toxic Masculinity

Posted on March 8th, 2019

AC’s ongoing pursuit of civil discourse in society was challenged during this year’s Sophomore Forum, which tackled “Toxic Masculinity”. A Gillette commercial, “We Believe: The Best Men Can Be”, has stimulated discussion on social media about what toxic masculinity is, and whether anything should be done to address it.  
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AC’s Younger Students Becoming Global Citizens, Too

Posted on March 1st, 2019

Students at AC don’t just learn about the world, they become global citizens, learning alongside their peers in other countries. That’s just as true in Lower School. Paul Hurteau of OneWorld Classrooms brought the rainforest to young students and conducted a workshop with faculty on enhancing global classrooms.  
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Open the door to

Unrestricted Possibilities

Throughout our history, the financial support of our school community, through The Fund for Allendale Columbia School, has solidified our longevity and commitment to education. This fund has been, and will continue to be, the cornerstone of our philanthropic efforts and without it, we would not have the ability to offer students the outstanding faculty, remarkable facilities, and unique programs we provide annually.  
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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!