Google has updated their doodle with the obligatory shout-out to the United States election today, but that's not all they've done. Clicking the logo will bring you to a page where you can enter your registered voting address. Once you've done that, it will show you you're official polling place, along with other election information.
Alternatively, you can access Google's Elections page directly. It's important that you get out to vote if you're registered to do so. Every vote counts, so make sure to head to your local polling place and cast your ballot.