Latinx millennials are the least likely group to vote in U.S. presidential elections. However, college-educated Latinx millennials defy the trend. Does a diverse campus environment help explain Latinx students' voter turnout? In this article, we draw upon Hurtado, Alvarez, Guillermo-Wann, Cuellar, and Arellano's (2012) model of diverse learning environments to examine whether measures of campus diversity are related to Latinx students' odds of voting in the 2012 and 2016 elections. We use data from the National Study of Learning, Voting, and Engagement and logistic estimation to show that in both elections, student body diversity was positively related to Latinx student turnout among registered voters. We also find limited evidence that Latinx students who were registered to vote were more likely to cast ballots if they attended campuses with chief diversity officers.