Thorndale is a city that is mostly in Milam County, and partly in Williamson County, in the U.S. state of Texas. It is located at the junction of US 79 and FM 486, southwest of the Milam County. It was founded in 1878, roughly three miles of its current site, when a railroad was built in the area. It was named by a railroad staff, after the area’s abundant thorny vegetation-mesquite thorn, prickly pear, and sagebrush. Thorndale became a shipping center for the area farmers as their economic activity was largely based on agriculture. It was incorporated in 1929, when the town had 1,500 residents. Although the Great Depression slightly decreased its population, the town managed to recover and grow again, especially when an aluminum plant was built nearby. As of 2010, it has a population of 1,336.