Berlin Heights is a village in Erie County, Ohio, United States. The population was 685 at the 2000 census. It is part of the Sandusky, Ohio Metropolitan Statistical Area.The village is in Berlin Township. The local school system is Berlin-Milan, as Berlin Township and Milan Township merged their separate school systems in the 1960s. The local high school is Edison High School, and the athletic teams are known as the Edison Chargers.In the late 1850s a branch of the "free love" movement was established here.