Millville is a city in Cumberland County, New Jersey, United States. As of the United States 2000 Census, the city population was 26,847. Millville, Bridgeton and Vineland are the three principal New Jersey cities of the Vineland-Millville-Bridgeton Primary Metropolitan Statistical Area which encompasses those cities and all of Cumberland County for statistical purposes. Millville apartments for rent comparison page shows most up to date rent information on Millville apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.