Thorndale, TX has a population of 1,194 and is the 14,057th largest city in the United States. The population density is 1,241 per sq mi which is 1180% higher than the Texas average and 1269% higher than the national average. The median age in Thorndale is 46 which is approximately 34% higher than the Texas average of 34. In Thorndale, 60% of the population over 15 years of age are married, 86% speak English and 11% speak Spanish. 80% of Thorndale residents were born in Texas, 16% were born out of state, 0% were born outside of the United States and 4% were foreign born.