Mark your calendars — it’s time for another election.

May 18 is Pennsylvania’s municipal primary, when registered voters across the state will cast ballots for their party’s favored candidates to run in November’s general election.

There are lots of local races happening in Philadelphia’s collar counties. In addition to statewide races and ballot questions, here are the races that voters in Chester, Montgomery, Delaware, and Bucks Counties will have to consider, according to the Committee of Seventy.

» READ MORE: Everything you need to know about the 2021 Pennsylvania primary

Remember these dates
May 3: Deadline to register to vote

May 11, 5 p.m.: Last day to request mail ballots

May 18: Primary election

May 18, 8 p.m.: Deadline to return mail ballots

Nov. 3: General election

» See our full Voter Guide for more tips

Chester County: Treasurer, controller, clerk of courts, coroner, common pleas court, magisterial district court, municipal and school board offices, judge of elections, and inspector of elections. Sample ballots can be found on Chester County’s website.

Delaware County: County council, sheriff, controller, register of wills, common pleas court, magisterial district courts, municipal and school board offices, judge of elections, and inspector of elections. Sample ballots can be found on Delaware County’s website.

Montgomery County: Court of common pleas, magisterial district court, jury commissioner, municipal and school board offices, judge of elections, and inspector of elections. Sample ballots can be found on Montgomery County’s website.

Bucks County: District attorney, sheriff, prothonotary, recorder of deeds, controller, court of common pleas, magisterial district court, municipal and school board offices, judge of elections, and inspector of elections. More information can be found on Bucks County’s website.

» READ MORE: Our best Philly tips: Read our most useful stories