Watauga is a city in Tarrant County, Texas, United States, and a suburb of Fort Worth. The population was 21,908 at the 2000 census.
Watauga is located at 32°52′17″N 97°14′57″W / 32.87139°N 97.24917°W / 32.87139; -97.24917 (32.871416, -97.249122). According to the United States Census Bureau, the city has a total area of 4.2 square miles (10.8 km²), all of it land.
The city is entirely landlocked by the cities of Keller to the north, Fort Worth to the west, Haltom City to the southwest and North Richland Hills to the south and east. Almost all of the city's land area is located east of US 377, though a portion extends west of that highway and includes homes and some city offices.