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California

Download data for this state

Visit the Statewide Database, the Redistricting Database for the State of California, for additional datasets. The Statewide Database hosts redistricting, election, and Census data, and is responsible for collecting and processing data for California’s decennial redistricting.

Types of Data

The data available for our states are Precinct Boundary and Election Results, Voter Files, Incumbent Addresses, Population Projections, PL 94-171, Legislative Boundaries, American Community Survey (ACS), Citizen Voting Age Projections (ACS) and TIGER Boundary files. Learn more about our data and if you need a redistricting dataset we don’t have, let us know what you need and why

This state has a constitutional or statutory requirement for modifying the PL 94-171 data prior to redistricting. The data hosted on this website is not the data used by the official redistricting body or bodies in this state. For the official data, go to The Statewide Database’s Redistricting page. For more information about state modifications, visit our State Modifications Report

Individual Data Downloads

Search by title or use the filters to find the data you need and download the files individually. You must register for an account to download data.

Name Source Uploaded
2016 Precinct and Election Results VEST 11/26/20
2010 Block Boundaries US Census Bureau 12/17/20
2010 Block Group Boundaries US Census Bureau 12/17/20
2010 Tract Boundaries US Census Bureau 12/17/20
2010 County Boundaries US Census Bureau 12/17/20
2010 State Boundary US Census Bureau 12/17/20
2013 Block Group ACS5 Data US Census Bureau 12/28/20
2014 Block Group ACS5 Data US Census Bureau 12/28/20
2015 Block Group ACS5 Data US Census Bureau 12/28/20
2016 Block Group ACS5 Data US Census Bureau 12/28/20
2017 Block Group ACS5 Data US Census Bureau 12/28/20
2018 Block Group ACS5 Data US Census Bureau 12/28/20
2019 Block Group ACS5 Data US Census Bureau 12/28/20
2010 County ACS5 Data US Census Bureau 12/28/20
2011 County ACS5 Data US Census Bureau 12/28/20
2012 County ACS5 Data US Census Bureau 12/28/20
2013 County ACS5 Data US Census Bureau 12/28/20
2014 County ACS5 Data US Census Bureau 12/28/20
2015 County ACS5 Data US Census Bureau 12/28/20
2016 County ACS5 Data US Census Bureau 12/28/20
2017 County ACS5 Data US Census Bureau 12/28/20
2018 County ACS5 Data US Census Bureau 12/28/20
2019 County ACS5 Data US Census Bureau 12/28/20
2010 State ACS5 Data US Census Bureau 12/28/20
2011 State ACS5 Data US Census Bureau 12/28/20
2012 State ACS5 Data US Census Bureau 12/28/20
2013 State ACS5 Data US Census Bureau 12/28/20
2014 State ACS5 Data US Census Bureau 12/28/20
2015 State ACS5 Data US Census Bureau 12/28/20
2016 State ACS5 Data US Census Bureau 12/28/20
2017 State ACS5 Data US Census Bureau 12/28/20
2018 State ACS5 Data US Census Bureau 12/28/20
2019 State ACS5 Data US Census Bureau 12/28/20
2010 Census Tract ACS5 Data US Census Bureau 12/28/20
2011 Census Tract ACS5 Data US Census Bureau 12/28/20
2012 Census Tract ACS5 Data US Census Bureau 12/28/20
2013 Census Tract ACS5 Data US Census Bureau 12/28/20
2014 Census Tract ACS5 Data US Census Bureau 12/28/20
2015 Census Tract ACS5 Data US Census Bureau 12/28/20
2016 Census Tract ACS5 Data US Census Bureau 12/28/20
2017 Census Tract ACS5 Data US Census Bureau 12/28/20
2018 Census Tract ACS5 Data US Census Bureau 12/28/20
2019 Census Tract ACS5 Data US Census Bureau 12/28/20
2012 to 2021 US Congressional Districts AAR 2/26/21
2012 to 2021 CA State Assembly Districts AAR 2/26/21
2012 to 2021 CA State Senate Districts AAR 2/26/21
2020 AIANNH Boundaries US Census Bureau 3/8/21
2020 Block Boundaries US Census Bureau 3/8/21
2020 Block Group Boundaries US Census Bureau 3/8/21
2020 County Boundaries US Census Bureau 3/8/21
2020 State Boundaries US Census Bureau 3/8/21
2020 Census Tract Boundaries US Census Bureau 3/8/21
HaystaqDNA 2010 Census Block Level P1 2020 to 2030 Population Projections HaystaqDNA 3/23/21
HaystaqDNA 2010 Census Block Level P2 2020 to 2030 Population Projections HaystaqDNA 3/23/21
HaystaqDNA 2010 Census Block Group Level P1 2020 to 2030 Population Projections HaystaqDNA 3/23/21
HaystaqDNA 2010 Census Block Group Level P2 2020 to 2030 Population Projections HaystaqDNA 3/23/21
2021 Voter File with Commercial Fields Aggregated to 2010 Census Block Level L2 4/27/21
2010 Block Group CVAP Data (2006-2010) US Census Bureau 4/29/21
2011 Block Group CVAP Data (2007-2011) US Census Bureau 4/29/21
2012 Block Group CVAP Data (2008-2012) US Census Bureau 4/29/21
2013 Block Group CVAP Data (2009-2013) US Census Bureau 4/29/21
2014 Block Group CVAP Data (2010-2014) US Census Bureau 4/29/21
2015 Block Group CVAP Data (2011-2015) US Census Bureau 4/29/21
2016 Block Group CVAP Data (2012-2016) US Census Bureau 4/29/21
2017 Block Group CVAP Data (2013-2017) US Census Bureau 4/29/21
2018 Block Group CVAP Data (2014-2018) US Census Bureau 4/29/21
2019 Block Group CVAP Data (2015-2019) US Census Bureau 4/29/21
2010 County CVAP Data (2006-2010) US Census Bureau 4/29/21
2011 County CVAP Data (2007-2011) US Census Bureau 4/29/21
2012 County CVAP Data (2008-2012) US Census Bureau 4/29/21
2013 County CVAP Data (2009-2013) US Census Bureau 4/29/21
2014 County CVAP Data (2010-2014) US Census Bureau 4/29/21
2015 County CVAP Data (2011-2015) US Census Bureau 4/29/21
2016 County CVAP Data (2012-2016) US Census Bureau 4/29/21
2017 County CVAP Data (2013-2017) US Census Bureau 4/29/21
2018 County CVAP Data (2014-2018) US Census Bureau 4/29/21
2019 County CVAP Data (2015-2019) US Census Bureau 4/29/21
2010 State CVAP Data (2006-2010) US Census Bureau 4/29/21
2011 State CVAP Data (2007-2011) US Census Bureau 4/29/21
2012 State CVAP Data (2008-2012) US Census Bureau 4/29/21
2013 State CVAP Data (2009-2013) US Census Bureau 4/29/21
2014 State CVAP Data (2010-2014) US Census Bureau 4/29/21
2015 State CVAP Data (2011-2015) US Census Bureau 4/29/21
2016 State CVAP Data (2012-2016) US Census Bureau 4/29/21
2017 State CVAP Data (2013-2017) US Census Bureau 4/29/21
2018 State CVAP Data (2014-2018) US Census Bureau 4/29/21
2019 State CVAP Data (2015-2019) US Census Bureau 4/29/21
2010 Census Tract CVAP Data (2006-2010) US Census Bureau 4/29/21
2011 Census Tract CVAP Data (2007-2011) US Census Bureau 4/29/21
2012 Census Tract CVAP Data (2008-2012) US Census Bureau 4/29/21
2013 Census Tract CVAP Data (2009-2013) US Census Bureau 4/29/21
2014 Census Tract CVAP Data (2010-2014) US Census Bureau 4/29/21
2015 Census Tract CVAP Data (2011-2015) US Census Bureau 4/29/21
2016 Census Tract CVAP Data (2012-2016) US Census Bureau 4/29/21
2017 Census Tract CVAP Data (2013-2017) US Census Bureau 4/29/21
2018 Census Tract CVAP Data (2014-2018) US Census Bureau 4/29/21
2019 Census Tract CVAP Data (2015-2019) US Census Bureau 4/29/21
2021 Voter File Aggregated to 2010 Census Block Level L2 4/30/21
2021 State House Incumbent Addresses Dr. Carl E. Klarner 5/12/21
2021 State Senate Incumbent Addresses Dr. Carl E. Klarner 5/12/21
2021 US Representatives Incumbent Addresses Dr. Carl E. Klarner 5/12/21
2018 Congressional Districts CVAP Data (2014-2018) US Census Bureau 5/20/21
2019 Congressional Districts CVAP Data (2015-2019) US Census Bureau 5/20/21
2018 Place CVAP Data (2014-2018) US Census Bureau 5/20/21
2019 Place CVAP Data (2015-2019) US Census Bureau 5/20/21
2018 SLDL CVAP Data (2014-2018) US Census Bureau 5/20/21
2019 SLDL CVAP Data (2015-2019) US Census Bureau 5/20/21
2018 SLDU CVAP Data (2014-2018) US Census Bureau 5/20/21
2019 SLDU CVAP Data (2015-2019) US Census Bureau 5/20/21
2021-2030 Population Projections joined to 2020 Census Blocks, P1 HaystaqDNA 5/21/21
2021-2030 Population Projections joined to 2020 Census Blocks, P2 HaystaqDNA 5/21/21
2021-2030 Population Projections joined to 2020 Census Block Groups, P1 HaystaqDNA 5/21/21
2021-2030 Population Projections joined to 2020 Census Block Groups, P2 HaystaqDNA 5/21/21
2020 ZIP Code Boundaries US Census Bureau 6/11/21
2020 Census Block Group level PL 94-171 US Census Bureau 8/13/21
2020 Census Block level PL 94-171 US Census Bureau 9/2/21
2020 Congressional District level PL 94-171 US Census Bureau 8/15/21
2020 County level PL 94-171 US Census Bureau 8/15/21
2020 Census Place level PL 94-171 US Census Bureau 8/15/21
2020 SLDL level PL 94-171 US Census Bureau 8/13/21
2020 SLDU level PL 94-171 US Census Bureau 8/15/21
2020 State level PL 94-171 US Census Bureau 8/15/21
2020 Census Tract level PL 94-171 US Census Bureau 8/15/21
2020 Census VTD level PL 94-171 US Census Bureau 8/15/21
2020 Census Block level PL 94-171 (by table) US Census Bureau 9/2/21
2021 L2 Voter File Aggregated to 2020 Census Block Level L2 9/7/21
2021 L2 Voter File with Commercial Fields Aggregated to 2020 Census Block Level L2 9/7/21
2010 Tract ACS VAP Data (2006-2010) US Census Bureau 9/9/21
2011 Tract ACS VAP Data (2007-2011) US Census Bureau 9/9/21
2012 Tract ACS VAP Data (2008-2012) US Census Bureau 9/9/21
2013 Tract ACS VAP Data (2009-2013) US Census Bureau 9/9/21
2014 Tract ACS VAP Data (2010-2014) US Census Bureau 9/9/21
2015 Tract ACS VAP Data (2011-2015) US Census Bureau 9/9/21
2016 Tract ACS VAP Data (2012-2016) US Census Bureau 9/9/21
2017 Tract ACS VAP Data (2013-2017) US Census Bureau 9/9/21
2018 Tract ACS VAP Data (2014-2018) US Census Bureau 9/9/21
2019 Tract ACS VAP Data (2015-2019) US Census Bureau 9/9/21
2020 AIANNH level PL 94-171 US Census Bureau 9/16/21
2016 Election Data Projected to 2020 Blocks VEST 9/22/21

More Context

To learn more about the rules, criteria, and litigation, please visit All About Redistricting’s California state page.

To learn more about how to use this data in the redistricting process read our Redistricting Readiness Checklist. For help in deciding on the mapping software to use this data in drawing Community of Interest and District Maps, use our Choose Your Own Mapping Tool. You can also reach out to our help desk with your questions!