Limited spaces are available for the 2023-2024 school year.

K-12 First Day of School: September 6th
AC3s & Pre-K First Day of School: September 7th

Please call our Admissions Office at 585-641-5344 to inquire.

Drop in ANY Wednesday between 9:00 a.m. and 2 p.m.
for a guided tour and to learn more about AC!

Can't make it? Call 585.641.5344 to make an appointment today!

A Different School of Thought

Our school is a thriving, diverse community of learners who engage locally and internationally to create opportunities to design, imagine, learn, and make a positive impact. 

At A Glance

List of 8 items.

  • 29-35

    Average Graduating Class
  • 17

    Advanced Placement Classes
  • 19

    Varsity Athletic Teams
  • 375

  • 6

    School Drama Productions
  • 6:1

    Student-Faculty Ratio
  • 64

    Faculty Members
  • 75%

    of AP Exam Scores 3 or Higher

List of 3 events.

  • Sep

    AC3s/Pre-K Color Days: Blue Day

    Once a month the Nursery and Pre-K students wear a specific color or pattern as they learn about different colors, shapes and patterns in their classrooms. Please join us in helping our youngest students celebrate the color or pattern of the month and wear what's specified in the calendar listing above!
  • Sep

    Blue & White Day

    This will be a dress down day. Every AC student in grades 1-12 will be assigned to the Blue Team or the White Team and should dress in their team color that day. (Team color assignments will be shared with families closer to Homecoming Weekend.) Students in grades 1-12 will then enjoy a fun-filled field day, and our Little School, AC3s, Pre-Kindergarten, and Kindergarten students will come out and cheer on both the blue and white teams! Please be sure students wear sneakers on this day. 
  • Sep

    HAC Bonfire at Harley

    All Upper School students are invited to attend the Homecoming Bonfire at The Harley School!
View All Events

Visit Us

Allendale Columbia School’s 33-acre campus is located on the east side of Rochester New York in Pittsford. Surrounded by birch trees and Allens Creek, the campus provides a serene environment where our students learn, grow, and explore. 
At Allendale Columbia, we prepare students for the world they will inherit. In our trusting and responsive environment, students in nursery through grade 12 grow in confidence and develop scholastic independence.