Born and raised in Bennington, Vermont, Sally Gil received her Bachelor of Arts from the University of California San Diego and her Master of Fine Arts from Hunter College, CUNY.
 
Based in Brooklyn, New York, Gil has shown at The Bennington Museum, Bennington, Vermont; White Columns, New York, NY; The Helen Day Art Center (now The Current), Stowe, VT; Geary Contemporary, New York, NY; 571 Projects, New York and Vermont; The University of North Carolina, Charlotte, NC; and the Dean Bergen Gallery, Brooklyn, NY. She has also been featured in group shows at The Fleming Museum, in Burlington, VT; The Bennington Museum, VT; The Brooklyn Museum, Brooklyn, NY; The Rotunda Gallery, Brooklyn, NY; and White Columns, NYC, among other venues.
 
In 2013, Gil was selected as a Fellow at ApexArt and traveled to São Paolo, Brazil for one month. She was chosen as a visiting artist at the University of North Carolina, Charlotte in 2010 and at the University of Tennessee at Knoxville in 2001. Her work was part of the US State Department's Arts in Embassies program and was displayed in the American Embassy in Brazzaville, Congo from 2014 to 2016.
 
In 2018, Gil was awarded a New York City MTA public art commission for the Avenue U station on the N line, Brooklyn. For this commission, she created and oversaw the fabrication of fourteen 4 x 9 feet mosaic niches installed at Avenue U on the N line in Brooklyn, New York. 2020, an image from her subway installation was chosen for the "Poetry in Motion" project featured throughout the New York City subway system.