Population Estimates The Census Bureau publishes population estimates each year for present and past data.  Federal funding allocations use these estimates as denominators for vital rates and per capita time series, as survey controls, and in monitoring recent demographic changes. Each year in July, the Census Bureau releases new estimates and revises estimates for earlier years which are then superseded and archived. All data in this section are produced by the US Census Bureau.  Select the links below for the US Census Bureau website, which explains the methodology, and for the past and present reports.  US Census Bureau Methodology Revised Population Estimate 2001 to 2006* Population Estimate 2000 to 2003 by Race Ethnicity* Population Estimate 2004* Population Estimate by Race Ethnicity All States 2003* * This document is presented in Portable Document Format (PDF). A PDF reader is required for viewing. Download a PDF Reader or Learn More About PDFs.