Watauga is a city in Tarrant County, Texas, United States, and an inner suburb of Fort Worth. The population was 23,497 at the 2010 census. The cities' businesses and retail market is generally located on Highway 377. Watauga is located at 325217N971457W / 32.87139N 97.24917W / 32.87139; -97.24917 (32.871416, -97.249122). According to the United States Census Bureau, the city has a total area of 4.2square miles (10.8km), all of it land.