Swartzville, PA has a population of 1,831 and is the 11,536th largest city in the United States. The population density is 1,256 per sq mi which is 353% higher than the Pennsylvania average and 1287% higher than the national average. The median age in Swartzville is 49 which is approximately 21% higher than the Pennsylvania average of 41. In Swartzville, 57% of the population over 15 years of age are married, 87% speak English and 8% speak Spanish. 79% of Swartzville residents were born in Pennsylvania, 14% were born out of state, 1% were born outside of the United States and 6% were foreign born.