Kulpsville, PA has a population of 8,859 and is the 4,327th largest city in the United States. The population density is 2,595 per sq mi which is 804% higher than the Pennsylvania average and 2764% higher than the national average. The median age in Kulpsville is 42 which is approximately 3% higher than the Pennsylvania average of 41. In Kulpsville, 68% of the population over 15 years of age are married, 86% speak English and 2% speak Spanish. 68% of Kulpsville residents were born in Pennsylvania, 21% were born out of state, 1% were born outside of the United States and 10% were foreign born.