The Golden Ear Awards have been given out by the non-profit, which recognizes local jazz artists, each year since 1990.
"Thanks to Earshot Jazz and all of you who voted! I’m humbled by this honor," Hardison wrote on her Facebook page Tuesday.
Known locally for performing in shows at Harlequin Productions and for her work with guitarist Vince Brown and others, Hardison received the most votes for the award, beating out four other nominated vocalists on this year's ballot.
In a 2016 interview, Brown likened listening to Hardison sing to taking an amazing trip.
"It's as if you're traveling in a strange land, and you've stumbled across the greatest tour guide there is," the guitarist said. "Every song is a journey, and you wind up in the most unexpected places.
"LaVon is one of the finest singers I have ever heard."
Hardison told The Olympian in 2016 that she has been singing since she was “an itty bit” and grew up singing in the church.
She studied classical music at Boston University but discovered she didn't have the temperament to be an opera singer. She finished up her degree at The Evergreen State College.
Hardison has several upcoming shows scheduled around Puget Sound through the end of the year. Her 2016 album, "Come Together," as well as her full discography are available on her website, www.lavonhardison.com.