Choral configuration, an umbrella term that refers to acoustical placement, formation, or spacing among singers, may cause noticeable transformations to the sound of a choir and the vocal production of ensemble members. Researchers have sought to discover how and to what extent these variables affect the choral sound. The purpose of this article is to examine published research in the area of choral configuration. This article concludes with implications for how choral music educators might apply research to create an optimal configuration for their ensembles.