Rosenhayn is a community located within Deerfield Township, in Cumberland County, in the Vineland-Millville metro area. It has a total area of 2.7 square miles, all of which is land and a population over 1,000. Thriving businesses, productive farms, schools, churches, recreational areas, open space and country homes share an ideal location near a network of major thoroughfares. Access to the major thoroughfares of Routes 55, 56, 552, and State Route 49 is available in or near this area for a convenient yet rural lifestyle. The community has experienced slow and steady growth in recent years, preserving its open feeling.