The first U.S. Census was conducted in 1790 by Thomas Jefferson. It had 6 questions. As required by the U.S. Constitution, a decennial census has been conducted every ten years since then.
Preliminary Data Released
In August of 2021, the US Census Bureau released preliminary data to aid in redistricting. State, county and municipal population data was released. York County’s population increased almost 5% to 456,438. Looking at neighboring counties, Adams County increased 2.4%, Lancaster County 6.5%, and Dauphin County 6.8%. The highest increase in the region, and in the state, was Cumberland County with 10.2% increase. Locally, Wellsville and Loganville Boroughs and West Manheim, Springfield, and Jackson Townships have had the greatest increases by percentage. This information can be found in both spreadsheet and pdf format below.