Dover, PA has a population of 2,042 and is the 10,897th largest city in the United States. The population density is 3,763 per sq mi which is 1258% higher than the Pennsylvania average and 4053% higher than the national average. The median age in Dover is 38 which is approximately 7% lower than the Pennsylvania average of 41. In Dover, 56% of the population over 15 years of age are married, 96% speak English and 1% speak Spanish. 83% of Dover residents were born in Pennsylvania, 14% were born out of state, 1% were born outside of the United States and 2% were foreign born.