What is the sales tax rate in Lake County, IL?

The average sales tax rate in Lake County (IL) is 7.88%, with jurisdictions ranging between 7.25% and 9.25%.

Lake County • Illinois (IL)

30 ZIP Code

Lake County, IL Sales Tax Rates 2026

2026 sales tax rate guide for Lake County, IL. Average combined tax rate is 7.88% with local jurisdictions ranging up to 9.25%.

Average Combined Rate

7.88%

Estimated Tax Range: 7.25% - 9.25%

⚡ Direct Tax Answer & Key Takeaway

As of 2026, the local county sales tax rate in Lake County (Illinois) is 0.00%. Combined sales tax rates across cities in this county range from 7.25% to 9.25% (averaging 7.88%).

County Tax

0.00%

Average Combined Rate

7.88%

Max Local Rate

9.25%

Indexed Cities

Cities & Towns in Lake County

City	Combined Sales Tax Rate	Action
Waukegan	8.75%	View Tax Rates →
Buffalo Grove	8.25%	View Tax Rates →
Mundelein	8.50%	View Tax Rates →
North Chicago	8.25%	View Tax Rates →
Highland Park	8.25%	View Tax Rates →
Lake Forest	8.25%	View Tax Rates →
Beach Park	7.25%	View Tax Rates →
Wauconda	8.25%	View Tax Rates →
Lincolnshire	8.25%	View Tax Rates →
Park City	8.25%	View Tax Rates →
Volo	8.25%	View Tax Rates →
Winthrop Harbor	7.25%	View Tax Rates →
Highwood	9.25%	View Tax Rates →
Grandwood Park	7.25%	View Tax Rates →
Wadsworth	8.25%	View Tax Rates →
Long Lake	7.25%	View Tax Rates →
Round Lake Heights	7.25%	View Tax Rates →
Forest Lake	7.25%	View Tax Rates →
Knollwood	7.25%	View Tax Rates →
Bannockburn	8.25%	View Tax Rates →
Third Lake	7.25%	View Tax Rates →
Tower Lakes	8.25%	View Tax Rates →
Indian Creek	7.25%	View Tax Rates →
Mettawa	7.25%	View Tax Rates →
Old Mill Creek	7.25%	View Tax Rates →

📋 State Tax Rules & Compliance Guide

Sourcing Rule: Origin-based for in-state retailers, Destination for out-of-state

Groceries & Food: Reduced 1% rate

Clothing & Apparel: Taxable

SaaS & Digital Goods: Non-Taxable (Chicago imposes separate 9% Personal Property Lease Tax)

Economic Nexus Threshold: $100,000 or 200 transactions

Official Tax Authority: Illinois Department of Revenue ↗

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Address-Specific Rates Rates current for 2026

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ZIP Codes in Lake County

60010 8.25% 60015 8.25% 60020 8.25% 60030 7.25% 60031 7.25% 60035 8.25% 60037 8.25% 60040 9.25% 60041 7.25% 60044 7.25% 60045 7.25% 60046 7.25% 60047 7.25% 60048 7.25% 60060 8.50% 60061 7.25% 60064 8.25% 60065 8.25% 60069 8.25% 60073 7.25% 60079 8.75% 60083 7.25% 60084 8.25% 60085 8.25% 60086 8.25% 60087 7.25% 60088 8.25% 60089 8.25% 60096 7.25% 60099 8.25%

❓ Frequently Asked Questions

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

The county tax rate for Lake County is 0.00%. When combined with Illinois state taxes and local municipal/district taxes, the overall sales tax rate varies between 7.25% and 9.25%.

In Illinois, grocery items are currently Reduced 1% rate. SaaS and digital automated goods are Non-Taxable (Chicago imposes separate 9% Personal Property Lease Tax).