Ocean Grove is an unincorporated community and census-designated place (CDP) that is part of Neptune Township, in Monmouth County, New Jersey, United States. It had a population of 3,057 at the 2020 census, down from 3,342 in 2010. It is located on the Atlantic Ocean's Jersey Shore, between Asbury Park to the north and Bradley Beach to the south. Listed on the National Register of Historic Places, Ocean Grove is noted for its abundant examples of Victorian architecture and for the Great Auditorium, acclaimed as "the state's most wondrous wooden structure, soaring and sweeping, alive with the sound of music." Another building, a former high school, is now the Jersey Shore Arts Center.