Pennsylvania Population 2024 By County Name. 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 that each of these have also had population increases of between 0.21% and 2.46% in. The pennsylvania state data center’s latest brief explores changes in.

Agriculture crime/safety culture economics education environment facts/trivia flags. The data as of july 1, 2022, provides estimates at the national, state, and.