As the U.S. becomes more racially and ethnically diverse, the opportunity to form interracial relationships increases. However, interracial relationships between non-Hispanic Blacks and non-Hispanic Whites are relatively uncommon. Using 2007-2011 and 2017-2021 American Community Survey (ACS) five-year data, this study examines the geographic variation in the prevalence of Black-White interracial and cohabiting couple households at the state and county levels. Additionally, this study examines how the prevalence has changed over time, and what the sociodemographic characteristics of these couples are in both time periods.