Voter participation rate calculates how many registered voters cast ballots, while voters by population divides the total voting-age population by ballots cast.
In Washington in 2018:
- the voter participation rate was 72 percent,
- the voters by population was 40 percent,
- the number of registered voters at cutoff was 5,205,
- the number of people who registered on election day was 418,
- the number of ballots cast was 4,036, and
- the total number of registered voters was 5,623.