Although public K-12 student enrollment dropped by 3% nationwide in 2020-21, the school year that marks the onset of the COVID-19 pandemic, the patterns differ for specific areas and types of schools. This paper describes the COVID-19 and Equity in Education (CEE) Enrollment Explorer tool, which was developed to help policymakers and educators examine enrollment trends by a range of school, community, and student characteristics. The CEE Enrollment Explorer allows users to examine state, regional-, district-, community-, and school-level shifts in student enrollment before and after the onset of the COVID-19 pandemic (March 2020) in selected states. The interactive CEE Enrollment Explorer aims to paint a more detailed picture of public K-12 student enrollment.