Washington's primary election saw 20,267 ballots rejected for late postmarks in 2026, a 32% increase from 2024's 16,131 rejections.
Election officials attribute the rise to U. S. Postal Service changes that no longer guarantee postmark dates match the day mail is received. Rural counties were most affected, though specific data was not provided in the source.
Officials recommend using drop boxes or mailing ballots at least a week before election day. The next primary election is scheduled for 2028.