This paper examines cross-racial interactions among students in a demographically diverse high school located in a suburb of Atlanta, GA. Because diversity is often conflated with the number of racially different bodies in a space, I examine students lived experiences to understand their cross-racial interactions. I examine how the mutual construction of space and identity, as well as the institutional structures of the school, shape cross-racial interaction. The construction of racialized identities by students often results in behaviors that deepen racial divisions. Furthermore, the negotiation of mixed-raced identities illustrates the rigid yet permeable boundaries surrounding race. The microgeogrpahies that are constructed within the school enhance cross-racial interaction in some settings and inhibit interaction in other settings. The process of ability tracking racially isolates students and inhibits cross-racial interaction. Overall, cross-racial interaction occurred at this high school suggesting that students have a better chance of cross-racial interaction within spaces of diversity.