Born on July 29, 1995, Leon is the only child of Kody and Meri Brown.

In 2020, Leon came out as transgender, sharing that they were previously "socialized as a girl."

"I was pretty young & unfortunately i grew up in a context that was incredibly gendered & restrictive," Leon—who also goes by "Leo"—wrote on Instagram. "and here’s the thing, i’m finally ready to share my favorite self with the world. and that self is incredibly genderqueer, trans, and unapologetic."

Leon married Audrey Kiss in 2020 at a Colorado courthouse wedding.