When logging onto Facebook on Election Day, the first things users probably saw was a box at the top of the newsfeed asking whether they had voted.

Facebook is tracking those who have responded to that question in real time by placing them on a map that shows where each user is voting.

In addition to tracking location, Facebook is also keeping track of the user’s age group, and considering that Facebook users skew relatively young their data has shown a high turnout of young voters this year.

Facebook had already recorded more than 3.7 million users by mid-afternoon  Tuesday who were planning on casting their ballots.

As the night goes on, that number continues to grow at a startling rate.

Two-thirds of the people who decided to click Facebook’s vote prompt box are under 35 years old.

People 18 to 24 years old make up 30 percent of the Facebook voters, with 25-to-34- year-olds making 32 percent.

Naturally Facebook’s data is no scientific poll, but the "I'm voting" button could have affected Tuesday’s turnout.

According to a recent study published in Nature, Facebook can “quadruple the power of get-out-the-vote messages."

TechCrunch agreed that Facebook can encourage voter turnout, too.

In their study they said:

“Large-scale, experimental research shows that simply clicking the button, and sharing your voting intention, could do more to increase voter turnout than any other partisan rant or news story you may share today. With a Single Message delivered electronically on Election Day,” researcher James Fowler told TechCrunch, “Facebook caused an extra third of a million people to vote."

Even though most of the people who use Facebook tend to be younger, the Huffington Post reported that 96 percent of people who use the Internet are on Facebook. So regardless of age, Facebook may have a major impact on getting people to vote.