Our data and interactives team creates graphics, databases, maps and other tools to tell compelling stories about the issues impacting California and the people who live here.

Water Tracker

Track water and drought conditions across the state, and explore  data points such as reservoir levels, household water shortages and snowpack levels.

Track California Wildfires

Map of active wildfires burning across California. Explore the history of wildfires and their toll in acreage, property and lives.

Disaster Days: How Climate Impacts School Closures

Twenty years of data on how climate change, wildfires and other events lead to school closures impacting millions of students.
A Reparations Task Force Meeting at San Diego State on Jan. 28, 2023. Photo by Ariana Drehsler, CalMatters

Reparations Calculator

Find out how much the state could owe Black residents in reparations. This calculator uses criteria from the California Reparations Task Force’s proposed plan.
Illustration by Miguel Gutierrez Jr., CalMatters; iStock

AB 1506 Police Tracker

Track cases where the California attorney general is investigating police shootings of unarmed individuals.
An illustration on the diversity of the California Legislature by Miguel Gutierrez Jr., CalMatters

Legislators Like You 2023

Explore the California state legislature’s demographic makeup.
An illustration on the new California election districts. Illustration by Miguel Gutierrez Jr., CalMatters; iStock

District Lookup

Which congressional district are you in? Who is your state senator? Enter your address to find your districts and representatives in California.

More Information

Use data from CalMatters on GitHub to build your own visuals and tools. Browse and download datasets about electric vehicles, campaign finance, homelessness, or COVID-19 hospitalizations.

To contact our data and interactives team, email john@calmatters.org.

Public Database Collection

California Legislator’s Financial Disclosure Forms

2002-2019 School Closures

California Electric Vehicle Car Registrations

California Homelessness Counts (2020, 2022, and 2024)

California Inmate Transfers

Teacher Experience in K-12 Schools