The interactive graphics below lets you track how ballots have been returned in Oregon, both over time and by county.

Since voting closed Nov. 4, 67 percent of the 448,525 registered voters in Multnomah County have returned ballots. Out of the 2.2 million registered voters in Oregon, 69.5 percent, or 1,519,804, returned ballots.

During the last midterm general election, in November 2010, turnout statewide reached 70.9 percent.

--Mark Graves