Mercer County
•
Illinois (IL)
12 ZIP Code
Mercer County, IL Sales Tax Rates 2026
2026 sales tax rate guide for Mercer County, IL. Average combined tax rate is 7.17% with local jurisdictions ranging up to 7.25%.
Average Combined Rate
7.17%
Estimated Tax Range: 6.25% - 7.25%
⚡ Direct Tax Answer & Key Takeaway
As of 2026, the local county sales tax rate in Mercer County (Illinois) is 1.00%. Combined sales tax rates across cities in this county range from 6.25% to 7.25% (averaging 7.17%).
County Tax
1.00%
Average Combined Rate
7.17%
Max Local Rate
7.25%
Indexed Cities
10
Cities & Towns in Mercer County
| City | Combined Sales Tax Rate | Action |
|---|---|---|
| Viola | 6.25% | View Tax Rates → |
| Matherville | 7.25% | View Tax Rates → |
| Keithsburg | 7.25% | View Tax Rates → |
| Seaton | 7.25% | View Tax Rates → |
| North Henderson | 7.25% | View Tax Rates → |
| Preemption | 7.25% | View Tax Rates → |
| Cable | 7.25% | View Tax Rates → |
| Millersburg | 7.25% | View Tax Rates → |
| Eliza | 7.25% | View Tax Rates → |
| Hamlet | 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 ↗
Interactive Sales Tax Calculator
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ZIP Codes in Mercer County
❓ Frequently Asked Questions
Key questions and answers regarding sales tax rates, exemptions, and compliance.