Officials said Brandon Musto, who was convicted in Thurston County for vehicular assault, only had three months left in a minimum security unit and was found missing about 9 p.m.
He apparently went over a fence, although officials are checking video as they investigate exactly how he got out and whether he had any help, spokesman Chad Lewis said.
A search team was immediately sent out to look for Musto and local law enforcement agencies were notified.
Musto began serving his sentence Sept. 23, 2011, and was set to be released in February 2013.
He is described as white, 180 pounds with brown eyes and brown hair. He has tattoos on his left wrist and right arm – it was not immediately known what his tattoos look like.
Anyone with information on Musto’s whereabouts is asked to call 911.