Notable Numbers – May 2026
The Academic Performance trends below reflect change from 2018–19 (pre-COVID baseline) to 2024–25. More Students Are Taking AP Exams The percentage of Upper School students taking at least one AP […]
Notable Numbers – April 2026
This edition examines Annual Giving as a % of Total Expense (2019–2025)—a key indicator of how much schools rely on philanthropy to fund operations and how exposed they are to shifts in donor behavior and economic conditions.
Notable Numbers – March 2026
This year’s INDEX admissions data reflects a subtle shift in funnel dynamics. While early indicators suggest modest demand tightening, enrollment outcomes remain stable, supported by improved yield and stable attrition.
Notable Numbers – February 2026
Teacher graduate degrees, energy costs, advanced coursework, board participation in capital campaign, and thank you letters.
Notable Numbers – January 2026
77% of Upper School Students Participate in Sports Upper School students’ participation in interscholastic sports has remained constant at 77% since INDEX started collecting data in 2013-14. Middle School students’ […]
Notable Numbers – December 2025
Teacher Attrition Drops to 9.8% INDEX teacher attrition fell to 9.8% in 2024-25, down 21% from the Covid peak and among the lowest rates in a decade. Still, turnover remains […]
Notable Numbers – November 2025
This month’s Notable Numbers includes highlights from the 2025 INDEX Data Trends Report delivered at the October HOS/CFO Conferences. Revenue Growth Outpaces Expense Growth Since 2017-18, average revenue per student […]
Notable Numbers – October 2025
The following Notable Numbers are taken from recent member surveys submitted through the INDEX portal. Endowment Draws (62 schools responding) Head of School Reporting (51 schools responding) Accounting Software (48 […]
Notable Numbers – September 2025
Pros and cons of remote/hybrid work as reported by INDEX Schools.
Notable Numbers – June 2025
Insights from the June 2025 INDEX College Counseling SurveyEighty-eight INDEX schools participated in the latest INDEX College Counseling Survey. Each school received a customized benchmark report with the complete findings. […]