King was born in 1977 in Maine, to parents Tabitha and Stephen King. He has two older siblings, Naomi King and Joseph Hillstrom King. He was raised in Bangor, Maine, showing an interest in writing during high school. King attended Vassar College and Columbia University, where he achieved a Masters in Fine Arts.
King published his first book, We’re All in This Together, a collection of three short stories and a novella in 2005 through Bloomsbury USA. His short fiction has been published through various journals, such as One Story and Prairie Schooner.
King's debut novel, Double Feature, was published in 2013 by Scribner.
King is married to writer Kelly Braffet.