Hanover is a village in Licking County, Ohio, United States.There were 334 housing units at an average density of 201.2 per square mile (77.7/km2).17.0% of all households were made up of individuals, and 9.3% had someone living alone who was 65 years of age or older.There were 328 housing units at an average density of 328.1 per square mile (126.7/km2).15.0% of all households were made up of individuals, and 6.7% had someone living alone who was 65 years of age or older.