Tuesday was Primary Day, but the city's polling sites are some of the loneliest places in town. Turnout is low, even in the mayor's political base of Park Slope. NY1's Roger Clark reports on why people were so apathetic about going to the polls.

On a day when there was a Democratic primary in the mayor's race and all 51 city council seats were up for grabs, many New Yorkers just walked past their polling sites.

NY1: You didn't realize it was Primary Day?

Man: No, I didn't.

NY1: There's a Democratic primary for mayor.

Man: No, I didn't know that. Thanks for letting me know, though.

No problem. But a good number of people who were aware the polls were open Tuesday said they would skip casting a ballot.

"I just actually don't really know much about the other candidates or anything like that," another said. "So I would rather be well informed rather than casting a vote."

But not everyone is so willing to give up their vote. "I'm not sure why people don't think it's important, but every vote is important," one woman said.

"It's important to participate in choosing who's in charge," one New Yorker said.

With the mayoral race generating little heat, perhaps it was not a surprise that many tuned out the election, even near de Blasio's Park Slope home.

Many of those who were not voting blamed a lack of information about the primaries for more people not showing up to vote.

Man: I just think it's a lack of communication. I mean, you have to let us know in order for us to show up and, you know, do what we have do.

NY1: So you would have liked a little more advance warning about this?

Man: Absolutely. I mean, who wouldn't?

"Maybe if they posted some posters or something in the subway as well, that might keep people more informed," another person said.

Though some weren't so willing to let non-voters off the hook.

NY1: We bumped into a few people today who didn't realize it was Primary Day. Is that kind of weird.

Voter: How could they not know? What rock are they living under?

One woman we talked to said she felt voting should be mandatory for all citizens. As for the folks who were sitting out the primaries, they said they would be back to cast their ballot in November's general election.