The Regional Educational Laboratory Northeast & Islands partnered with the Vermont Agency of Education and the Agency of Human Services to address questions about enrollment rates in universal preK. This study used data from 2016/17, the first year of full implementation of universal preK, to identify the characteristics of children in different types of preK programs, whether they were enrolled within or outside the geographic boundaries of their local education agency, and the factors related to enrollment in particular program options. The study sample included 5,622 children enrolled in 282 preK programs in 2016/17 out of approximately 8,600 children enrolled that school year in 383 prequalified preK programs. Descriptive and regression analyses were used to examine the children's characteristics. (author abstract)