The New Jersey Department of Health (NJDOH) is investigating a cluster of Legionnaires’ disease cases in Union County. The Department is aware of 14 confirmed cases of Legionnaires’ disease, including one death, among individuals who live in or spend time in the county. The cases were reported to the Department between February 3 and February 26, 2021. The Department is working with the local health departments in Union County to investigate this cluster. The individual who died was a male resident of Union County in his late 60s.