The last two decades have seen a large expansion in the number of states offering options to vote before election day, from 24 states in 2000 to 46 states in 2024. Put another way: In the 2000 general election, 40% of all voting-age citizens lived in states that offered at least one option for voting before election day—such as early in-person voting or mail ballots. As of this writing, nearly 97% of all voting-age citizens will live in states that will offer at least one option to vote before election day in the 2024 election.
The Expansion of Voting Before Election Day, 2000–2024