Aldan, PA has a population of 4,170 and is the 7,253rd largest city in the United States. The population density is 6,988 per sq mi which is 2422% higher than the Pennsylvania average and 7613% higher than the national average. The median age in Aldan is 47 which is approximately 16% higher than the Pennsylvania average of 41. In Aldan, 53% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 84% of Aldan residents were born in Pennsylvania, 12% were born out of state, 1% were born outside of the United States and 4% were foreign born.