2020 Census: Census Bureau Improved the Quality of Its Cost Estimation but Additional Steps Are Needed to Ensure Reliability, Report to Congressional Requesters   [open pdf - 3MB]

"In October 2017, the Department of Commerce (Commerce) announced that the projected life-cycle cost of the 2020 Census had climbed to $15.6 billion, a more than $3 billion (27 percent) increase over its 2015 estimate. A high-quality, reliable cost estimate is a key tool for budgeting, planning, and managing the 2020 Census. Without this capability, the Bureau is at risk of experiencing program cost overruns, missed deadlines, and performance shortfalls."