This executive summary of the 2020 Decennial Census Life-cycle Cost Estimate (LCCE) provides a high-level overview of the June 2019 version of 2020 Census LCCE and the supporting 2020 Decennial Census LCCE Basis of Estimate (BoE). The executive summary constitutes Version 2.0 of the 2020 Decennial Census LCCE. It incorporates updates to the Version 1.0 Executive Summary issued December 21, 2017. These updates primarily include realigning cost data within the Work Breakdown Structure (WBS) to more accurately reflect how activities are managed and planned, updating the estimate to reflect actual costs through FY 2018, integrating FY 2018 End-to-End Census Test results, and incorporating final definitive scope details for major contracts and field operations.

The executive summary is prepared for public release and does not include details of the technical approach, program design, assumptions, model calculations, cost breakouts, etc. Detailed documentation of the 2020 Census LCCE is contained in the BoE. The BoE is the detailed formal documentation of the cost estimate that is not published for the general public, but rather is intended for official government use, including by auditors and oversight bodies.