The Regional Educational Laboratory Northeast & Islands partnered with the Vermont Agency of Education and the Agency of Human Services to address questions about enrollment patterns in universal preK. This study uses data from the 2016/17 school year, the first year of implementation of universal preK, to understand the characteristics of children in different preK program options (public or private and quality level), whether they are enrolled within or outside the boundaries of their local education agency, and the factors related to enrollment in particular program options. (author abstract)