Sen. Bernie Sanders beat former Secretary of State Hillary Clinton among unmarried Democratic women who voted in Tuesday night's Wisconsin primary, one of the many demographics that helped propel him to victory in the state.

According to CNN's exit polls, Sanders won 54 percent of unmarried women among Wisconsin Democrats, while Clinton only won 39 percent, a 15-point margin. Clinton, however, won the lion's share of married women, taking 53 percent to Sanders' 46 percent.

Overall, Sanders and Clinton split support among all women, as both won 49 percent.

Sanders kept up his strong support among millennials. He won 82 percent of the vote from 18-24 year-olds, and 73 percent of the vote from 18-44 year-olds.

The win for Sanders in Wisconsin is his 15th state victory as he continues to try to close the gap with Clinton among pledged delegates. But Clinton continues to hold an overwhelming lead in the delegate race.