What is the sales tax rate in Sonoma County, CA?

The average sales tax rate in Sonoma County (CA) is 9.51%, with jurisdictions ranging between 9.25% and 10.50%.

Sonoma County • California (CA)

41 ZIP Code

Sonoma County, CA Sales Tax Rates 2026

2026 sales tax rate guide for Sonoma County, CA. Average combined tax rate is 9.51% with local jurisdictions ranging up to 10.50%.

Average Combined Rate

9.51%

Estimated Tax Range: 9.25% - 10.50%

⚡ Direct Tax Answer & Key Takeaway

As of 2026, the local county sales tax rate in Sonoma County (California) is 0.00%. Combined sales tax rates across cities in this county range from 9.25% to 10.50% (averaging 9.51%).

County Tax

0.00%

Average Combined Rate

9.51%

Max Local Rate

10.50%

Indexed Cities

Cities & Towns in Sonoma County

City	Combined Sales Tax Rate	Action
Santa Rosa	10.00%	View Tax Rates →
Petaluma	10.25%	View Tax Rates →
Rohnert Park	9.75%	View Tax Rates →
Windsor	9.25%	View Tax Rates →
Healdsburg	9.75%	View Tax Rates →
Cloverdale	10.00%	View Tax Rates →
Larkfield-Wikiup	9.25%	View Tax Rates →
Cotati	10.25%	View Tax Rates →
Sebastopol	10.50%	View Tax Rates →
Boyes Hot Springs	9.25%	View Tax Rates →
Guerneville	9.25%	View Tax Rates →
Forestville	9.25%	View Tax Rates →
El Verano	9.25%	View Tax Rates →
Sonoma State University	9.25%	View Tax Rates →
Penngrove	9.25%	View Tax Rates →
Graton	9.25%	View Tax Rates →
Eldridge	9.25%	View Tax Rates →
Sea Ranch	9.25%	View Tax Rates →
Occidental	9.25%	View Tax Rates →
Kenwood	9.25%	View Tax Rates →
Monte Rio	9.25%	View Tax Rates →
Geyserville	9.25%	View Tax Rates →
Fulton	9.25%	View Tax Rates →
Timber Cove	9.25%	View Tax Rates →
Bodega	9.25%	View Tax Rates →
Salmon Creek	9.25%	View Tax Rates →
Jenner	9.25%	View Tax Rates →
Valley Ford	9.25%	View Tax Rates →

📋 State Tax Rules & Compliance Guide

Sourcing Rule: Hybrid (Origin for city/county, Destination for district taxes)

Groceries & Food: Exempt (0%)

Clothing & Apparel: Taxable (standard rates)

SaaS & Digital Goods: Non-Taxable (Custom & off-the-shelf cloud software is exempt)

Economic Nexus Threshold: $500,000 in cumulative California sales

Official Tax Authority: California Department of Tax and Fee Administration (CDTFA) ↗

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Address-Specific Rates Rates current for 2026

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ZIP Codes in Sonoma County

94922 9.25% 94923 9.25% 94926 10.25% 94927 9.75% 94928 9.25% 94931 10.25% 94951 9.25% 94952 9.25% 94953 10.25% 94954 10.25% 94972 9.25% 95401 10.00% 95403 9.25% 95404 9.25% 95405 10.00% 95406 10.00% 95407 10.00% 95409 10.00% 95416 9.25% 95419 9.25% 95421 9.25% 95425 10.00% 95433 9.25% 95436 9.25% 95439 9.25% 95441 9.25% 95442 9.25% 95444 9.25% 95446 9.25% 95448 9.75% 95450 9.25% 95452 9.25% 95462 9.25% 95465 9.25% 95471 9.25% 95472 9.25% 95473 10.50% 95476 9.25% 95486 9.25% 95492 9.25% 95497 9.25%

❓ Frequently Asked Questions

Key questions and answers regarding sales tax rates, exemptions, and compliance.

The county tax rate for Sonoma County is 0.00%. When combined with California state taxes and local municipal/district taxes, the overall sales tax rate varies between 9.25% and 10.50%.

In California, grocery items are currently Exempt (0%). SaaS and digital automated goods are Non-Taxable (Custom & off-the-shelf cloud software is exempt).