2020 census deadline confusion has government officials urging Pennsylvanians to complete the form sooner rather than later. Will the 2020 census end in a few days, or in a month from now? According to a federal ruling last week, October 31 is the new deadline. However, the U. S. Secretary of Commerce announced Monday night that the 2020 census will end Oct. 5, despite that ruling. However, the Trump administration is appealing the decision to extend the deadline.