2025 Voter Registration By State Map. Find out voter registration numbers by party in each state, the different primary types in each state, and the movements for nonpartisan reform happening across the country. As of april 2025, 42 states, washington, d.c., and guam allowed online voter registration.

Voter registration requires that a person eligible to vote registers on an electoral roll before that person is entitled or permitted to vote. These deadlines were extended from earlier in the month due.