Pennington County
•
South Dakota (SD)
10 ZIP Code
Streamlined Sales Tax (SST) Member
Pennington County, SD Sales Tax Rates 2026
2026 sales tax rate guide for Pennington County, SD. Average combined tax rate is 5.20% with local jurisdictions ranging up to 6.20%.
Average Combined Rate
5.20%
Estimated Tax Range: 4.20% - 6.20%
⚡ Direct Tax Answer & Key Takeaway
As of 2026, the local county sales tax rate in Pennington County (South Dakota) is 0.00%. Combined sales tax rates across cities in this county range from 4.20% to 6.20% (averaging 5.20%).
County Tax
0.00%
Average Combined Rate
5.20%
Max Local Rate
6.20%
Indexed Cities
7
Cities & Towns in Pennington County
| City | Combined Sales Tax Rate | Action |
|---|---|---|
| Rapid City | 6.20% | View Tax Rates → |
| Box Elder | 4.20% | View Tax Rates → |
| Hill City | 4.20% | View Tax Rates → |
| New Underwood | 4.20% | View Tax Rates → |
| Keystone | 6.20% | View Tax Rates → |
| Wasta | 4.20% | View Tax Rates → |
| Quinn | 6.20% | View Tax Rates → |
📋 State Tax Rules & Compliance Guide
Sourcing Rule:
Destination-based
Groceries & Food:
Exempt (0% Tax)
Clothing & Apparel:
Taxable at standard rate
SaaS & Digital Goods:
Non-Taxable
Economic Nexus Threshold:
$100,000 in sales or 200 separate transactions
Official Tax Authority:
South Dakota Department of Revenue ↗
Interactive Sales Tax Calculator
Calculate exact sales tax and total purchase price instantly.
Address-Specific Rates
SST Member
Standard State
Rates current for 2026
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State Tax:
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ZIP Codes in Pennington County
❓ Frequently Asked Questions
Key questions and answers regarding sales tax rates, exemptions, and compliance.