Groton Long Point (GLP) is a political subdivision of the town of Groton, on Long Island Sound in New London County, Connecticut, United States. The population was 667 at the 2000 census. Used mostly by families as a summer resort, life in Groton Long Point is very different depending on the season.
The area is administered by the Groton Long Point Association (GLPA), which was established by an act of the Connecticut Legislature in 1921. The act enabled seasonal residents to tax and issue bonds to provide services independent of the town of Groton; typically such municipal corporations provided services that the larger township could not or would not provide. The corporation was not described as borough in the law forming it, but it has the same governmental powers as a borough. Today such a special taxing district can be formed by Connecticut residents on their own without special acts of the Legislature.  The area is treated by the U.S. Census Bureau as a borough although it is not formally incorporated as such.