Voter participation rate calculates how many registered voters cast ballots, while voters by population divides the total voting-age population by ballots cast.
In Idaho in 2018:
- the voter participation rate was 67 percent,
- the voters by population was 50 percent,
- the number of registered voters at cutoff was 839,406,
- the number of people who registered on election day was 78,284,
- the number of ballots cast was 612,536, and
- the total number of registered voters was 917,612.