Contra Costa County, California - The Lawyer Legion Information Center of Contra Costa County, California provides numerous resources for consumers in need of legal guidance. Search our directory of lawyers, law firms, board-certified specialists, and bar associations. Learn more about the legal system in Contra Costa County, California by finding an overview of state and county laws, important government and court resources. Use our comprehensive attorney directory to browse, compare connect with the best attorneys currently practicing law in Contra Costa County.