McAllen, TX has a population of 138,475 and is the 193rd largest city in the United States. The population density is 2,373 per sq mi which is 2348% higher than the Texas average and 2519% higher than the national average. The median age in McAllen is 32 which is approximately 5% lower than the Texas average of 34. In McAllen, 58% of the population over 15 years of age are married, 21% speak English and 76% speak Spanish. 60% of McAllen residents were born in Texas, 11% were born out of state, 1% were born outside of the United States and 28% were foreign born.