General Service Agenices

The city of Sonora is the county seat of Tuolumne County, California. The city population was 4,802 during the 2010 Census, up from 4,423 during the 2000 Census. Sonora is the only incorporated community in Tuolumne County. 

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City of Sonora

Welcome to the City of Sonora website.
​General information on City of Sonora services and general information.

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Tuolumne County

Welcome to Tuolumne County website. For general information and services for the County of Tuolumne 

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