Glassport, PA has a population of 4,444 and is the 6,971st largest city in the United States. The population density is 2,810 per sq mi which is 914% higher than the Pennsylvania average and 3001% higher than the national average. The median age in Glassport is 41 which is approximately 2% higher than the Pennsylvania average of 41. In Glassport, 57% of the population over 15 years of age are married, 96% speak English and 0% speak Spanish. 94% of Glassport residents were born in Pennsylvania, 4% were born out of state, 0% were born outside of the United States and 1% were foreign born.