The Washington, DC area is a great place live, work, and study, whether your interest is federal statistics, survey research methods, market research, or graduate programs in survey methodology.  Listed below are links to just a few of the organizations in the area, as well as links to national websites of interest.

Federal Statistical Agencies and Committees
Bureau of Economic Analysis
Bureau of Justice Statistics
Bureau of Labor Statistics
Bureau of Transportation Statistics
Economic Research Service
Energy Information Administration
Federal Committee on Statistical Methodology
National Agricultural Statistics Service
National Center for Education Statistics
National Center for Health Statistics
Statistics of Income Division of the Internal Revenue Service
U.S. Census Bureau

Professional Organizations
American Association for Public Opinion Research
Midwest Chapter of AAPOR (MAPOR)
New York Chapter of AAPOR (NYAAPOR)
Pacific Chapter of AAPOR (PAPOR)
Southern Chapter of AAPOR (SAPOR)
New England Chapter of AAPOR (NEAAPOR)
Pennsylvania/New Jersey Chapter of AAPOR (PANJAAPOR)
World Association for Public Opinion Research (WAPOR)
Insights Association (formerly CASRO and MRA)
International Field Directors and Technologies Conference
Washington Statistical Society

Academic Programs and Student Resources
American University Center for Data Science
Consortium of Universities of the Washington Metropolitan Area
George Mason University Certificate in Federal Statistics
George Washington University Certificate in Survey Design and Analysis
Joint Program in Survey Methodology
University of Virginia Center for Survey Research

Other Online Resources
Polling Report
StatSoft Statistics Glossary
UIC SRL List of Sites Related to Survey Research