Ambridge, PA has a population of 6,891 and is the 5,237th largest city in the United States. The population density is 4,637 per sq mi which is 1573% higher than the Pennsylvania average and 5018% higher than the national average. The median age in Ambridge is 40 which is approximately 2% lower than the Pennsylvania average of 41. In Ambridge, 44% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 83% of Ambridge residents were born in Pennsylvania, 15% were born out of state, 1% were born outside of the United States and 1% were foreign born.