Pasadena, TX has a population of 153,286 and is the 168th largest city in the United States. The population density is 3,514 per sq mi which is 3525% higher than the Texas average and 3779% higher than the national average. The median age in Pasadena is 31 which is approximately 9% lower than the Texas average of 34. In Pasadena, 53% of the population over 15 years of age are married, 56% speak English and 41% speak Spanish. 61% of Pasadena residents were born in Texas, 13% were born out of state, 1% were born outside of the United States and 25% were foreign born.