New Braunfels ) is a city in Comal and Guadalupe counties in the U.S. state of Texas that is a principal city of the ]] metropolitan area. Braunfels means "brown rock" in German; the city is named for Braunfels, in Germany. The city's population was 57,740 as of the 2010 census, up 58% from the 2000 census population of 36,494. It is the seat of Comal County. New Braunfels has a sizeable German Texan community. During the 19th century, its name was often spelled Neu-Braunfels, even by English speakers.