Cultural proficiency is defined as "the policies and practices of an organization or the values and behaviors of an individual that enable the agency or person to interact effectively in a culturally diverse environment." The diverse composition of today's classrooms demands that schools and educators be culturally proficient, yet few of them are. When schools are culturally proficient, they have high levels of achievement for all students, minimal failures or dropouts, equitable enrollment in gifted and advanced placement classes, few and more valid referrals to special education, fewer discipline problems, and teachers who feel empowered. To determine whether a school district is culturally proficient, one can hire a consulting firm with the capabilities and experience to conduct a comprehensive evaluation that includes an analysis of district data; assessment of staff beliefs, knowledge, and skills related to diversity; and a review of district policies and practices. One can also conduct their own assessment. In this article, the authors provide suggestions for conducting cultural proficiency assessments.