Census, voting, registration, and geographic data sets for
statewide elections beginning in 1992.
Welcome to the Statewide Database, California's redistricting database. We are responsible for collecting and processing data for California's decennial redistricting. In 2001, 2011 and 2021, these data were used for Assembly, Senate, Congressional, Board of Equalization, and local redistrictings, as mandated by law. Data collection and processing are ongoing between redistrictings, with precinct level datasets and resources published after each election.
After every statewide election we publish voter registration and voting reports at the precinct level. In addition we create digitized precinct boundary files and data conversion tables. Our data conversion tables make it possible to convert a dataset from one geographic unit to another, for example between precincts and census blocks. These resources can be found under the Election tab.
After each Decennial Census, the Census Bureau provides a census block level redistricting dataset as per Public Law 94-171. We merge the census data with the Statements of Registration and Vote from the previous decades' statewide elections to create a block level dataset that allows for analysis of all three datasets on the same unit of analysis: the census block. Explore the Redistricting tab to find these datasets and other documents from past redistrictings.
Assembly, Congressional, Senate, and Board of Equalization District maps, certified by the Citizens Redistricting Commission, are hosted here as well. They can be found as well under the Redistricting tab as an interactive map or in a variety of geographic formats.
Please use our Contact Us or call us at (510) 642-9086 if you would like our assistance with any project concerning our data. We also welcome your feedback on this site. Thank you!
Statewide Database additionally developed two district-based tools that are specifically focused on California’s statewide districts.
Learn more about each of these tools at Draw My California
Here are some quick links to help you get started on finding what you need.
Follow the links to access new uploads and the latest versions of data files.
2024
The 2024 Primary Election San Diego and Shasta County data files have been updated
2024
The 2024 Primary Election Amador and Glenn County data files have been updated
2024
The 2024 Primary Election Sutter and Sonoma County data files have been updated
2024
The 2024 Primary Election Butte, Del Norte, Inyo, Mariposa and Ventura County data files have been updated
2024
The 2024 Primary Election Calaveras, Contra Costa, Fresno, Lake, Los Angeles, and Nevada County data files have been updated
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