Population Estimates: Results of the Census Bureau's Challenge Program.

The document discusses the Census Bureau's Population Estimates Program (PEP) and the Population Estimates Challenge Program (PECP), which provide annual population and housing unit estimates for state and local governments. The PECP allows governments to challenge these estimates, with the Bureau revising estimates in response to challenges. The Bureau made changes to its methodology following the 2020 Census, including using a blended base for estimates. Ongoing research projects aim to improve population estimates, with feedback from the public being incorporated to enhance the PECP process. [Extracted from the article]