Born in Minneapolis, Jill spent her childhood and teen years in Canada. She attended Humber College in Toronto, majoring in jazz performance and arranging under the tutelage of Ron Collier, who himself had served as arranger for Duke Ellington in the 70s. She performed with her ensembles in the city's top venues, including George's Spaghetti House and the Montreal Bistro.
Upon being awarded a Canada Council Grant, she made the move to New York City and studied at the New School with Richie Beirach, Jim Hall, Kenny Werner and Hal Galper as part of the jazz program there.
Shortly after she completed the program her group, the Jill McCarron Quintet won first place in the New York City finals of the prestigious Cognac Hennessy Jazz Competition, which led to a spot in the national finals at the Hollywood Palace in Los Angeles.
In 1993 she was a semifinalist in the Thelonious Monk Jazz Piano Competition. In 1995 she secured first place in the 13th Annual Great American Jazz Competition, whose judges included Horace Silver and Renee Rosnes, and was noted in a subsequent article for her "deeply rooted jazz sensibility."
Since then Jill has worked and toured with notable artists such as the great trumpeter Randy Brecker, saxists Don Braden and Vincent Herring, guitarist Russell Malone, bassists Harvie S. and Jay Leonhart, among many others. Venues have included Dizzy's Jazz Club at Lincoln Center, Bemelmans Bar at the Carlyle Hotel, Smalls Jazz Club, Mezzrow, The Blue Note, the Knickerbocker Bar and Grill, The Iridium and more. She has toured as well throughout the U.S. and in Europe, South America and Japan to play at jazz festivals and clubs in those locales.
Jill has also been the long time resident pianist at the Harvard Club of New York City. There she performs selections from the Great American Songbook, and a classical piano repertoire, including the compositions of J.S. Bach, Scarlatti, Mozart, Beethoven,Chopin, Ravel and others.
In addition to regular performances at the Harvard Club, upcoming performances in December 2017 will include solo piano at the Two E Lounge at the Pierre Hotel, as well as at the Knickerbocker Bar and Grill, The Merion Inn in Cape May NJ, and at Smalls with her quartet, featuring Don Braden..