Corinth, TX has a population of 20,764 and is the 2,084th largest city in the United States. The population density is 2,665 per sq mi which is 2649% higher than the Texas average and 2841% higher than the national average. The median age in Corinth is 37 which is approximately 7% higher than the Texas average of 34. In Corinth, 68% of the population over 15 years of age are married, 87% speak English and 11% speak Spanish. 56% of Corinth residents were born in Texas, 36% were born out of state, 1% were born outside of the United States and 7% were foreign born.