Sonoma County Court Information
Courts, filing fees, e-filing, and clerk contacts for Sonoma County, California.
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Verified from official sources · 2026-07-26At $435, the civil filing fee in Sonoma County is about the same as nearby counties (median $435 across 6 nearby counties).
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Frequently Asked Questions
How much does it cost to file a civil case in Sonoma County?
The civil filing fee in Sonoma County, California is $435.00 (first paper, unlimited civil over $25,000)
What is the small claims filing fee in Sonoma County?
$30-$75 ($30 if $1,500 or less; $50 up to $5,000; $75 up to $10,000)
How much does it cost to file for divorce or a family case in Sonoma County?
$435.00 (dissolution/legal separation/nullity first petition)
Can I e-file court documents in Sonoma County?
Yes. E-filing is available.
Is there a free online case search for Sonoma County?
Yes. You can look up cases online at cmsportal.sonomacourt.org.
Where do I file court documents in Sonoma County?
Filings go to the Superior Court of California, County of Sonoma. You can reach the clerk at (707) 521-6610.
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