Lago, TX has a population of 233 and is the 23,747th largest city in the United States. The population density is 4,934 per sq mi which is 4990% higher than the Texas average and 5346% higher than the national average. The median age in Lago is 60 which is approximately 74% higher than the Texas average of 34. In Lago, 60% of the population over 15 years of age are married, 27% speak English and 73% speak Spanish. 94% of Lago residents were born in Texas, 0% were born out of state, 0% were born outside of the United States and 6% were foreign born.