After submitting a voter registration application, approved voters in many states receive voter registration certificates with information regarding the voting precinct for their registered address. Counties assign polling place locations based on precincts, and those assignments are typically available on the local county registration official's website.
While voting on election day typically requires you to vote at your assigned precinct polling location, in-person early voting allows you to vote at any number of different locations provided for that purpose. Early voting locations frequently differ from election day locations. The assigned early voting locations are also published on the application voter registration official's website and often also appear in newspapers.