Blount, a little-known software developer, was nevertheless running second among Republicans with 3 percent support, far behind tea party favorite Tim Donnelly but one percentage point ahead of the best-funded Republican in the race, Neel Kashkari, according to the most recent Field Poll.
Blount said on Facebook that he has been "battling some health issues that have taken an unfortunate toll on me."
"While the long term prognosis is good, I have to concentrate on them in order to be here for my family," Blount wrote. "Due to this, I've been unable to put together the campaign that California deserves and in the event that I was to win the primary, I would be unable to put forth the energy necessary to continue the race."
Blount said he will continue on as mayor of his Orange County city. The candidate reported raising no money for his gubernatorial bid, and he said on Facebook, "I have no donations to refund, as I accepted none."
PHOTO: From Andrew Blount's website for his 2012 campaign for city council in Laguna Hills. Photo by Michelle Blount