Allendale Columbia has fifty-four teachers. Thirty-nine of the faculty hold advanced degrees with an average teaching experience of 18 years.
Campus
Allendale Columbia School occupies more than in Pittsford, New York that stretches to Oak Hill County Club. The school is separated into three divisions: Lower School, Middle School and Upper School. While these divisions each have their own areas on campus, they share many common spaces, including a 500-seat performance center, library, dining commons for locally sourced lunches, and athletic, music and arts facilities. The students change buildings for various classes and use the entire campus throughout their day. The main buildings house 41 classrooms, five science laboratories, nine computer laboratories, three music classrooms, two art studios, a darkroom, a digital photography laboratory, a foreign language laboratory, a library, a performance center, two gymnasia, and a science wing. In 2012, the school opened residences for foreign students, and it hosts 25-35 international students from as many as 15 different countries and four continents. In 2013, students began organizing and hosting an annual TEDx conference on campus, as an independently organized TED event. In 2014, Allendale Columbia School created a summerLEAP partnership with School 17 of the Rochester City School District to provide summer enrichment programs for RCSD students. In 2015, the school unveiled a new design and innovation laboratory with 3D printers, Mac computers, drafting tables, and tools. That year, the school also partnered with the Hybrid Learning Consortium. It creates a globalized learning community offering a diverse variety of online courses to students around the world. In 2016, the school celebrated its 125th anniversary.
Athletics
Allendale Columbia School is merged with The Harley School for interscholastic sports competition in grades 7 through 12. The two schools began co-ordinating their athletic programs during the 1972–1973 school year. The joint program is referred to as Harley Allendale Columbia and originally competed as the Harley-Allendale Columbia Braves. In 1997, students of both schools voted to change the team name from the Braves to the Wolves. Team supporters are known as the Wolfpack. The HAC enforces a "no-cut" athletic program, and varsity places are guaranteed for any committed seniors. The HAC co-ordination exists to enhance the interscholastic athletic program of both schools by combining student bodies and resources, as well as faculty for coaching purposes. The school has had success in the Section V Finger-Lakes West Division, including sectional titles in boys' and girls' tennis, boys' and girls' soccer, boys' and girls' cross country and boys' and girls' basketball.
