Despite our vote-by-mail ability (which is nice, don't get me wrong), our voter turnout for primary elections has hovered around 50% or lower since the 1960s [0], with a few exceptions of course.

General elections see much higher turnout [1], often hitting into 80% or more, but generally staying in the 70s.

[0] https://sos.oregon.gov/elections/Documents/Voter-Turnout-His...

[1] https://sos.oregon.gov/elections/Documents/Voter_Turnout_His...