Resident Population in Ocean County, NJ was 666.43400 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Ocean County, NJ reached a record high of 666.43400 in January of 2024 and a record low of 208.47000 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Ocean County, NJ - last updated from the United States Federal Reserve on September of 2025.