Oregon is not a "right to work" state and that means workers who work at unionized shops must belong to the union or pay "fair share" dues.
Cascade Policy Institute conducted the latest research.
Steve Buckstein with the Institute says the state results track what they've found nationally.
"What it found when you asked a simple question of whether you would opt out of a union, 31.2 percent said yes. What does that mean? It means a signfiicant portion of people who are forced to join the union or pay dues to the union, don't want to do so."
A citizens initiative is underway to collect signatures to put the issue of make Oregon a "right to work" state on the November 2014 ballot.