Jill Lamontagne was active in French Club and varsity sports such as cross country, basketball, and softball. Earning a science and health sciences degree at the University of Southern Maine, she minored in holistic health and biology. Taking on the Kennebunk High School health teacher position, she coordinated volunteer activities that benefitted veterans and those in need in the local community.

A fitness enthusiast, she runs road races and half marathons in her free time. She also maintains a longstanding presence as a coach with organizations such as Kennebunk Little League and the travel basketball team Kennebunk Hoops. Working through the local Parks and Recreation Department, Jill Lamontagne helped launch a youth field hockey program that she coaches to this day.