Despite efforts to increase the number of minority journalists working in radio, television, newspaper and digital newsrooms across the United States, the percentage of people of color working in newsrooms is only slightly more than half of the percentage of minorities in the overall population. Social Identity Theory holds that an individual’s self-concept is shaped, in part, by their perceived membership in a group. With the U.S. expected to become “minority White” by 2045, minority representation in newsrooms could have significant implications for not only increasing the number of people of color employed newsrooms, but also increasing listeners, viewers, and readers of media organizations as people of color would see themselves — or more accurately, hear themselves — reflected in those organizations. This experiment used an online questionnaire to expose U.S. adults to the voices of professional radio newscasters of various races to determine if the participants could accurately identify the race or ethnicity of the newscaster from a voice recording. The race of the newscaster—White, Black or Hispanic—served as the independent variable and was manipulated to measure perceived source credibility, which served as the dependent variable. Participants were best able to correctly identify White newscasters. Results were mixed as to whether racial congruence between participant and newscaster affected the ability to identify the newscaster’s race, but racial congruence did influence the credibility scores of individual newscasters.