Coastal oak-hickory forests are restricted to the coastal lowlands in Suffolk and possibly Nassau Counties. They are concentrated on knolls and mid to upper slopes of glacial moraines. The range of this community possibly extends westward into northeastern Nassau County and on the end moraine of western Long Island (Greller 1977).

This natural community occurs along the coast from Maine to Maryland. This community is similar to the mesic coastal plain mixed oak forest of New Jersey.