New Providence is a borough in northwestern Union County along the Passaic River and the lower slopes of the Watchung Mountains. It borders Berkeley Heights, Summit, Chatham Township, and Long Hill Township, placing it near both Union and Morris County employment centers. Springfield Avenue serves as the main commercial corridor, while nearby Interstate 78 and Route 24 provide regional highway access. NJ Transit stations at New Providence and Murray Hill offer service on the Gladstone Branch toward Summit, Newark, Hoboken, and New York connections. The borough includes established residential neighborhoods, schools, parks, houses of worship, local businesses, and office and research properties. Its traditional center and railroad neighborhoods reflect nineteenth-century development, while later growth expanded into surrounding hills and former farmland. New Providence's combination of rail service, river valley geography, and proximity to major corporate and healthcare centers gives it a well-connected suburban character.