California currently has roughly 23 million registered voters , which is just under a quarter of all registered voters in the United States and the highest of any state.

Latest numbers

  • As of mid to late 2025, multiple official and analytical sources put California’s registered voter count around 22.9–23.1 million.
  • The California Secretary of State’s registration statistics and summaries cited in 2025 reporting use figures “about 22.9 million” and “roughly 23.06 million” registered voters.

Share of eligible adults

  • California has about 26.9 million eligible adults , and roughly 82–85% of them are registered to vote, indicating a relatively high registration rate.
  • Earlier snapshots (like July 2024 and October 2024) showed around 22.0–22.6 million registered, so the current ~23 million figure is consistent with a gradual rise.

Context in the US

  • Among states reporting recent registration data, California has the most registered voters (about 22.9 million), ahead of Texas and Florida.
  • Nationally, reports for 2025 show about 44.1 million registered Democrats and 37.4 million registered Republicans , with California contributing a large share of that total because of its high registration and population.

Information gathered from public data and reporting available on the internet and summarized here.