• Visit Oregon's Census 2010 website:
• Visit the U.S. Census Bureau website:
• Census 2010 Data Show Population and Diversity Trends
• The Oklahoma State Data Center has developed an Excel workbook to approximate margins of error and adjust confidence levels for ACS estimates. Look for “ACS Calculator” at
• Download the latest "Brown-bag" Presentation by Population Research Center.
Census 2000 District Maps
Available for download, click on maps to view full-size: