If you requested a mail-in ballot to vote in Pennsylvania’s primary election but figure you may be out of time to send it in the mail, you still have some options. Some counties have drop boxes or satellite offices where you can return mail-in ballots or absentee ballots. The primary election is Tuesday, May 18. All ballots - including mail-in ballots - must be returned by 8 p.m. on May 18. In ...