South Dakota Sales Tax Rates: Sioux County
Sioux County, South Dakota Sales Tax Rate 2026 Up to 4.2%
While many counties do levy a countywide sales tax, Sioux County does not. The South Dakota sales tax of 4.2% applies countywide. None of the cities or local governments within Sioux County collect additional local sales taxes.
Here's how Sioux County's maximum sales tax rate of 4.2% compares to other counties around the United States:
- Lower maximum sales tax than 84% of South Dakota counties
- Lower maximum sales tax than 96% of counties nationwide
Tax Rates By City in Sioux County, South Dakota
The total sales tax rate in any given location can be broken down into state, county, city, and special district rates. South Dakota has a 4.2% sales tax and Sioux County collects an additional N/A, so the minimum sales tax rate in Sioux County is 0% (not including any city or special district taxes). This table shows the total sales tax rates for all cities and towns in Sioux County, including all local taxes.
| City | Sales Tax Rate | Tax Jurisdiction |
|---|---|---|
| Hawarden | 4.2% | Union |
| Selfridge | 4.2% | Standing Rock Special Jurisdiction |
South Dakota Sales Tax Rates by Zip Code:
Need an updated list of South Dakota sales tax rates for your business? Download our South Dakota sales tax database!
Sioux County, South Dakota has a maximum sales tax rate of 4.2% and an approximate population of 2,716.
Sales tax rates in Sioux County are determined by two different tax jurisdictions, Standing Rock Special Jurisdiction and Union.
Back to South Dakota Sales Tax Handbook Sales tax rates for Sioux County are current as of June 2026
Tax compliance done right
Tired of manually handling sales taxes? Avalara can automate your multi-state sales tax returns, let you know when you've triggered nexus, and more. Request a free demo of Avalara today.