Pennsylvania State Population 2024 Census. Usafacts uses census data to break down the population of perry county by race,. Montgomery county (820,656), bucks county (626,751), and delaware county (563,995) are all in the top five most populous counties in the state, and census statistics show.

Shows estimates of current usa population overall and people by us state/county and of world population overall, by country and most populated countries. Usafacts uses census data to break down the population of pennsylvania by race,.