Skip To Main Content

Above Nav Container

Finalsite Academy

Utility Container

Search Trigger (Container)

Button (Container)

Button (Container)

Mobile Menu Trigger (container)

Off Canvas Navigation Container

Close Trigger (container)


Mrs. Jillian Cosgrove

Director of School Counseling

Secondary Faculty: Psychology, Human Growth & Development

jillian cosgrove portrait headshot


Pomona College: Bachelor of Arts, Psychology
Georgia State University: Master of Education, School Counseling

Employed at Cornerstone since



Short Hills, New Jersey

What I love most about Cornerstone

The students! We have a unique population of incredibly interesting students (and parents) with vitality and sweetness that is different from other school populations.

When I'm not at Cornerstone, I'm...

Enjoying family time, having coffee or bubble tea with friends, or snuggled in my favorite chair in front of the TV.

You may not know...

While I grew up in New Jersey, I was born in Brussels, Belgium, so I don't really claim New Jersey as home. Georgia is more home to me than any other place has ever been.