Llano, TX has a population of 3,335 and is the 8,289th largest city in the United States. The population density is 633 per sq mi which is 553% higher than the Texas average and 599% higher than the national average. The median age in Llano is 41 which is approximately 18% higher than the Texas average of 34. In Llano, 53% of the population over 15 years of age are married, 84% speak English and 16% speak Spanish. 78% of Llano residents were born in Texas, 16% were born out of state, 1% were born outside of the United States and 4% were foreign born.