Roselawn is a census-designated place in Newton and Jasper counties in the U.S. state of Indiana. The population was 4,131 at the 2010 census. Roselawn is known in northwestern Indiana for the two nudist resorts which operate in this town: the Ponderosa Sun Club and Sun Aura. Sun Aura resort was previously known as Naked City, but closed in 1986 after its operator, Dick Drost, encountered significant legal troubles.