What is the Local Update of Census Addresses program (LUCA)?
The Local Update of Census Addresses program, also known as LUCA, is a decennial census geographic partnership program that will allow the Census Bureau to benefit from tribal knowledge in updating its Master Address File (MAF) for the 2010 Census. Tribal governments can contribute to a complete enumeration of their reservation by reviewing and commenting on the list of housing units and group quarters addresses that the Census Bureau will use to deliver questionnaires within their community.