Movies:
* The Shining (1980): While inspired by a real-life hotel in Colorado, the movie setting was changed to the fictional Overlook Hotel in the Colorado mountains.
* The Running Man (1987): Set in a dystopian future Los Angeles.
* Misery (1990): Set in Colorado.
* Pet Sematary (1989): Although the novel is set in Maine, the movie adaptation moved the setting to Ludlow, Vermont.
* 1408 (2007): Set in the 1408 room of the Dolphin Hotel in New York City.
* The Dark Tower (2017): The movie adaptation is set in a fantastical world that is not specifically tied to a real location.
Books:
* The Stand (1978): The story is set across the United States, with key locations including Las Vegas, Boulder, Colorado, and Nebraska.
* The Dead Zone (1979): Set in Castle Rock, a fictional town in Maine, but also features locations in New York and Washington, D.C.
* Salem's Lot (1975): Set in a fictional town of Salem's Lot in Vermont.
* Different Seasons (1982): This collection of novellas contains several stories not set in Maine, including "Rita Hayworth and Shawshank Redemption" (set in Maine and Texas), "The Body" (set in Maine), "Apt Pupil" (set in Germany), and "The Breathing Method" (set in New York City).
* Desperation (1996): Set in a fictional town in Nevada.
* The Regulators (1996): Set in a fictional town in New Hampshire.
* Dreamcatcher (2001): While primarily set in Maine, the story also features locations in Russia.
* 11/22/63 (2011): Set in Texas and parts of New England (including Maine).
* Revival (2014): Set in a small town in Massachusetts.
This is not an exhaustive list, but it gives you a good starting point! As you can see, King's stories are not limited to Maine, and he explores various settings across the US and beyond.