The Pa. primary election: When polls open, when they close and what you need to know to vote Posted May 18, 2021 The Pennsylvania primary election takes place today. While the “off-year election” doesn’t generate the buzz of a presidential contest, these races affect Pennsylvanians in profound ways. Voters will choose candidates in municipal, school board, county and judicial races, including the Harrisburg mayor’s contest. Those casting ballots will be voting for people who will help set local tax rates, establish school policies and rule on criminal cases. In many ways, these votes determine who will be deciding matters that you care about on a day-to-day basis.