Morrisville CDP, PA has a population of 862 and is the 16,090th largest city in the United States. The population density is 556 per sq mi which is 101% higher than the Pennsylvania average and 514% higher than the national average. The median age in Morrisville CDP is 53 which is approximately 30% higher than the Pennsylvania average of 41. In Morrisville CDP, 63% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 85% of Morrisville CDP residents were born in Pennsylvania, 15% were born out of state, 0% were born outside of the United States and 0% were foreign born.