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Contact Purpose Contact Information
Boundary and Annexation Survey (BAS) questions Phone: 1-800-972-5651
Email: geo.bas@census.gov
Inquiries about the American Community Survey Phone: 1-800-923-8282
FAQ: ask.census.gov
Webpage: www.census.gov/programs-surveys/acs/
Inquiries about the Population Estimates Program Phone: 1-800-923-8282
FAQ: ask.census.gov
Webpage: www.census.gov/programs-surveys/popest.html
Mailing Address Send to: U.S. Census Bureau
National Processing Center
ATTN: BAS Returns, Bldg 63E
1201 East 10th Street
Jeffersonville, IN 47132
Requesting respondent or historical BAS data Phone: 301-763-1099
Email: geo.bas@census.gov

Please provide your name, organization, address, telephone number, and the purpose of your request.
Federal Relay Service, providing equal communication access for persons who are deaf, hard-of-hearing, deaf/blind, or have speech disabilities Phone: 1-855-482-4348
Webpage: www.gsa.gov/fedrelay

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