Springdale, PA has a population of 3,388 and is the 8,207th largest city in the United States. The population density is 3,629 per sq mi which is 1209% higher than the Pennsylvania average and 3905% higher than the national average. The median age in Springdale is 48 which is approximately 17% higher than the Pennsylvania average of 41. In Springdale, 56% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 90% of Springdale residents were born in Pennsylvania, 9% were born out of state, 1% were born outside of the United States and 1% were foreign born.