Local Redistricting - LUCA
The Local Update of Census Addresses (LUCA) is a Census Bureau partnership program that gives tribal, state, and local governments the opportunity to review and comment on the Census Bureau's official address list prior to the decennial census. The Census Bureau relies on a complete and accurate address list to reach every living quarter and associated population for inclusion in the census, and LUCA is the primary mechanism through which local governments can ensure their community's addresses are correctly captured. Participating governments receive the Bureau's address list for their jurisdiction, can suggest additions, deletions, and corrections, and then receive address-level feedback on how their submissions were incorporated.
U.S. Census Programs for Local Governments
LUCA Updates and Info
The 2030 LUCA Schedule: Key Dates for Tribal, State, and Local Governments
Why the 2030 Census LUCA Program Matters to Redistricting and GIS Staff
Watch: NCSL 2030 Census Prep Webinar – Local Update of Census Addresses
Video Resources
LUCA Resources & Guides
This resource list includes what the Census Bureau has published to help local governments prepare for the 2030 Local Update of Census Addresses, gathered here in one place and arranged in the order a jurisdiction would actually work through them.
The list begins with program overview and training materials, for offices deciding whether and how to participate, and then moves to building and formatting a local address list, followed by the tools for comparing census block counts against local records, the step the Bureau identifies as the starting point of a LUCA review. Interactive map viewer links are listed for offices that want to see where housing has changed since 2020 before committing staff time.
The final sections include reference resources such as participation history, associated statutes, address list maintenance procedure, and operational assessments of previous LUCA cycles. For questions, comments, or input, email michelle@redistrictingonline.org.
Last updated: July 2026