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

The average sales tax rate in Knox County (IL) is 7.75%, with jurisdictions ranging between 6.25% and 8.75%.

Knox County • Illinois (IL)

17 ZIP Code

Knox County, IL Sales Tax Rates 2026

2026 sales tax rate guide for Knox County, IL. Average combined tax rate is 7.75% with local jurisdictions ranging up to 8.75%.

Average Combined Rate

7.75%

Estimated Tax Range: 6.25% - 8.75%

⚡ Direct Tax Answer & Key Takeaway

As of 2026, the local county sales tax rate in Knox County (Illinois) is 0.00%. Combined sales tax rates across cities in this county range from 6.25% to 8.75% (averaging 7.75%).

County Tax

0.00%

Average Combined Rate

7.75%

Max Local Rate

8.75%

Indexed Cities

Cities & Towns in Knox County

City	Combined Sales Tax Rate	Action
Galesburg	6.25%	View Tax Rates →
Abingdon	7.75%	View Tax Rates →
Knoxville	8.75%	View Tax Rates →
Oak Run	7.75%	View Tax Rates →
Oneida	7.75%	View Tax Rates →
East Galesburg	7.75%	View Tax Rates →
Williamsfield	8.75%	View Tax Rates →
Yates City	7.75%	View Tax Rates →
Altona	8.75%	View Tax Rates →
Henderson	7.75%	View Tax Rates →
Victoria	7.75%	View Tax Rates →
Rio	7.75%	View Tax Rates →
Maquon	7.75%	View Tax Rates →
Gilson	7.75%	View Tax Rates →
St. Augustine	7.75%	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 Knox County

61401 6.25% 61402 6.25% 61410 7.75% 61414 8.75% 61428 7.75% 61430 7.75% 61436 7.75% 61439 7.75% 61448 8.75% 61458 7.75% 61467 7.75% 61472 7.75% 61474 7.75% 61485 7.75% 61488 7.75% 61489 8.75% 61572 7.75%

❓ Frequently Asked Questions

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

The county tax rate for Knox County is 0.00%. When combined with Illinois state taxes and local municipal/district taxes, the overall sales tax rate varies between 6.25% and 8.75%.

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).