Notable Numbers – April 2025

The following 6-year trends include the same schools throughout.

For a detailed comparison of your school’s performance, please refer to the Admissions section of your INDEX Annual Report.

Applications | +10%

Since SYE 2018, average applications at INDEX schools have increased 10%.

  • PK–12: +12% | Now averages 554
  • Middle/Upper: +8% | Now averages 443
  • PK–8: –1% | Now averages 224

Acceptance Rate | –6%

The average acceptance rate at INDEX schools has declined 6% since 2018.

  • PK–12: –9% | Now averages 53%
  • Middle/Upper: +1% | Now averages 50%
  • PK–8: –1% | Now averages 60%  

Yield | +1%

Average yield at INDEX schools has risen 1% since 2018.

  • PK–12: +2% | Now averages 72%  
  • Middle/Upper: –2% | Now averages 73%  
  • PK–8: –3% | Now averages 70%

Attrition | –6%

Average attrition at INDEX schools has dropped 6% since 2018.

  • PK–12: –9% | Now averages 6%
  • Middle/Upper: –6% | Now averages 4%
  • PK–8: +2% | Now averages 9%

Enrollment | +4%

Since 2018, average enrollment at INDEX schools has grown by 4%.

  • PK–12: +4% | Now averages 1130
  • Middle/Upper: +8% | Now averages 700
  • PK–8: Stable | Now averages 503