What is the Local Update of Census Addresses (LUCA) Program?
The Local Update of Census Addresses program, also known as LUCA, is a decennial census geographic partnership program that allows designated representatives of tribal, state, and local governments to review and update the Census Bureau’s Address List that is used to deliver questionnaires for the decennial census. The LUCA program uses local knowledge to update the Census Bureau’s Address List and maps. It is authorized by the Census Address List Improvement Act of 1994 (Public Law 103-430).