Haslet is a city in Denton and Tarrant counties within the Dallas–Fort Worth metroplex in the U.S. state of Texasand is located 15 miles north of downtown Fort Worth and 20 miles south of Denton. Haslet borders Interstate 35W, U.S. Highway 287, and Alliance Airport.According to the United States Census Bureau, the town has a total area of 8.2 square miles (21.2 km2), of which 0.02 square miles (0.05 km2), or 0.22%, is water.Haslet is 702 ft. above sea level.
According to the Handbook of Texas, the area was settled around 1880, but it is likely that no distinct community formed until 1883, when the tracks of the Gulf, Colorado and Santa Fe Railway were extended through the area. Haslett, Michigan was the hometown of the railroad's contractor. A post office opened in 1887; by 1896 the one-teacher school had twenty-one students. Haslet's population was sixty-seven in 1903 and fifty in 1915. During the 1920s Haslet had three grocery stores as well as a hardware store, dry goodsstore, and cotton gin.