Best Groton Public Preschools

For the 2026-27 school year, there are 3 public preschools serving 1,215 students in Groton, CT.

The top-ranked public preschools in Groton, CT are Thames River Magnet School, Charles Barnum Magnet School and Catherine Kolnaski Magnet School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Groton, CT public preschools have an average math proficiency score of 46% (versus the Connecticut public pre school average of 37%), and reading proficiency score of 53% (versus the 42% statewide average). Pre schools in Groton have an average ranking of 4/10, which is in the bottom 50% of Connecticut public pre schools.

Minority enrollment is 57% of the student body (majority Hispanic), which is less than the Connecticut public preschool average of 60% (majority Hispanic).