The Honorable Ronni B. MacLaren

Alameda County Superior Court

Court Info

Alameda County Superior Court, Department 25 (website)

Clerk phone: 510-267-6941

Courtroom Rules


The Hon. Ronni B. MacLaren is a judge of the Superior Court of Alameda County in California. She was appointed by former Governor Arnold Schwarzenegger on February 23, 2005. MacLaren won the primary election on June 5, 2018.

MacLaren received a bachelor's degree from Smith College and a J.D. from the University of Virginia School of Law.


  • Bachelor's Degree from Smith College
  • J.D. from University of Virginia


  • Judge at Superior Court of Alameda
  • Judge at Superior Court of Los Angeles County
  • Judge at Los Angeles county Municipal Court
  • Assistant at US Attorney, Central District of California
  • Attorney at , Adams, Duque and Hazeltine