Pennsylvania Population 2024 By County And State. York county, pennsylvania's estimated 2024 population is 468,231 with a growth rate of 0.77% in the past year according to the most recent united states census data. Population estimates are available for the state and its counties by age, gender and race/ethnicity by 5 year age cohort.

Commonwealth of pennsylvania government websites and email systems use pennsylvania.gov or. Pennsylvania population hit 13 million in 2020.