Milesburg, PA has a population of 829 and is the 16,351st largest city in the United States. The population density is 1,856 per sq mi which is 570% higher than the Pennsylvania average and 1949% higher than the national average. The median age in Milesburg is 33 which is approximately 18% lower than the Pennsylvania average of 41. In Milesburg, 50% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 91% of Milesburg residents were born in Pennsylvania, 9% were born out of state, 0% were born outside of the United States and 0% were foreign born.