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Documentation: ACS 2009 (3-Year Estimates)
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Publisher: U.S. Census Bureau
Document: ACS 2009-3yr Summary File: Technical Documentation
Social Explorer; U.S. Census Bureau; American Community Survey 2007-2009 Summary File: Technical Documentation.
ACS 2009-3yr Summary File: Technical Documentation
Appendix B. Graphical Representation of ACS Summary File Organization
B.1. 2005-2009 ACSSF All In 2 Giant Files (Experienced-Users-Only)

B.2. 2005-2009 ACSSF By State All Tables

B.3. 2005-2009 ACSSF By State By Sequence Table Subset

* The United States folder contains tables for summary levels that cross state boundaries, such as the nation, regions, divisions, metropolitan statistical areas and tribal reservations. It does not contain tables for geographies that are entirely within a state, such as counties and places; for those tables, go to the folder for that state.