Government Code › TITLE 3. GOVERNMENT OF COUNTIES › DIVISION 1. COUNTIES GENERALLY › CHAPTER 4. County Seats › ARTICLE 1. Location of County SeatsGovernment Code § 23655‹ § 23654§ 23656 ›Copy linkOpen in browserleginfo ↗23655.The county seat of Tuolumne is Sonora.(Added by Stats. 1947, Ch. 424.)