Please visit ask.census.gov for general FAQs and Census Bureau contact information.

For any questions related to our international data products, training, tools, and software, please email [email protected].

For Census and Survey Processing System (CSPro) support, please email [email protected] (in English, French, or Spanish). Please attach any supporting programs or data files that are relevant to your question to your email.

For Demographic Analysis and Population Projections System (DAPPS) software support, please email [email protected]

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