South Park Township, PA has a population of 13,470 and is the 3,107th largest city in the United States. The population density is 1,453 per sq mi which is 424% higher than the Pennsylvania average and 1504% higher than the national average. The median age in South Park Township is 44 which is approximately 9% higher than the Pennsylvania average of 41. In South Park Township, 68% of the population over 15 years of age are married, 94% speak English and 1% speak Spanish. 81% of South Park Township residents were born in Pennsylvania, 13% were born out of state, 1% were born outside of the United States and 5% were foreign born.