New Smyrna Beach is a city in Volusia County, Florida, United States. The population was 20,048 according to the 2000 census. As of 2004, the population recorded by the U.S. Census Bureau is 21,464. New Smyrna Beach apartments for rent comparison page shows most up to date rent information on New Smyrna Beach apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.