Confluence, PA has a population of 708 and is the 17,410th largest city in the United States. The population density is 442 per sq mi which is 60% higher than the Pennsylvania average and 388% higher than the national average. The median age in Confluence is 50 which is approximately 22% higher than the Pennsylvania average of 41. In Confluence, 47% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 83% of Confluence residents were born in Pennsylvania, 15% were born out of state, 1% were born outside of the United States and 1% were foreign born.