Voting centers will be open from 10 a.m. on Thursday until 8 p.m.
Early voting for Maryland's April 26 primary runs through April 21. There is at least one early voting center in each county.
Ballots should be cast at designated early voting centers in county of residence.
Voters will be choosing nominees for president and a U.S. Senate seat, as well as nominees for congressional seats. Baltimore voters will be picking a nominee for mayor.
Addresses for the early voting centers are available at www.elections.maryland.gov/voting/early-voting.html