Palacios, TX has a population of 4,659 and is the 6,778th largest city in the United States. The population density is 943 per sq mi which is 873% higher than the Texas average and 941% higher than the national average. The median age in Palacios is 40 which is approximately 17% higher than the Texas average of 34. In Palacios, 63% of the population over 15 years of age are married, 42% speak English and 45% speak Spanish. 67% of Palacios residents were born in Texas, 8% were born out of state, 0% were born outside of the United States and 25% were foreign born.