Lakeside, TX has a population of 1,817 and is the 11,584th largest city in the United States. The population density is 1,195 per sq mi which is 1133% higher than the Texas average and 1219% higher than the national average. The median age in Lakeside is 53 which is approximately 55% higher than the Texas average of 34. In Lakeside, 70% of the population over 15 years of age are married, 92% speak English and 7% speak Spanish. 65% of Lakeside residents were born in Texas, 32% were born out of state, 1% were born outside of the United States and 2% were foreign born.