From the Center for Inclusive Democracy:

After historically high turnout in the 2020 presidential election amidst the COVID-19 pandemic, the 2024 presidential election saw a decline in turnout across California. Despite the hopeful expectations of many that the voter behavior seen in 2020 would become the new normal, a notable number of Californians who participated four years earlier did not participate in November. This drop in turnout prompted many policymakers, advocates and researchers to ask who participated in the 2024 presidential election, and possibly more importantly, who did not. To explore these questions, the Center for Inclusive Democracy conducted a statewide analysis of voter participation in the 2024 presidential election by examining official California voter files. Analysis was broken out by race, ethnicity, age group, party affiliation, gender and language designation.