This study examined the degree to which achievement gaps existed among different ethnic and racial groups before kindergarten entry. Using published data on the Early Childhood Longitudinal Study-Birth Cohort, this study found statistically significant differences in language knowledge and skills, literacy knowledge and skills, and mathematics knowledge and skills between Black children and White children, Hispanic children and White children, and Asian and White children as early as 4-years-old. The largest achievement gap was found between Hispanic children and White children, followed by Black children and White children. Asian children were found to perform better than White children on measures of literacy, mathematics, and fine motor skills. Implications of this study were discussed. (Contains 2 tables.)