Iowa Sales Tax Rates: Sioux County

Iowa:

Sioux County, Iowa Sales Tax Rate 2026 Up to 7%

The Sioux County Sales Tax is 1%

A county-wide sales tax rate of 1% is applicable to localities in Sioux County, in addition to the 6% Iowa sales tax.

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 7% compares to other counties around the United States:

Higher maximum sales tax than any other Iowa counties
Lower maximum sales tax than 56% of counties nationwide

Last updated June 2026

Tax Rates By City in Sioux County, Iowa

The total sales tax rate in any given location can be broken down into state, county, city, and special district rates. Iowa has a 6% sales tax and Sioux County collects an additional 1%, so the minimum sales tax rate in Sioux County is 7% (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
Sioux Center	7%	Sioux Center
Orange City	7%	Alton
Rock Valley	7%	Rock Valley
Hull	7%	Hull
Alton	7%	Alton
Boyden	7%	Boyden
Hospers	7%	Hospers
Ireton	7%	Ireton
Granville	7%	Granville
Maurice	7%	Maurice
Matlock	7%	Matlock
Chatsworth	7%	Chatsworth

Iowa Sales Tax Rates by Zip Code:

Need an updated list of Iowa sales tax rates for your business? Download our Iowa sales tax database!

Sioux County, Iowa has a maximum sales tax rate of 7% and an approximate population of 23,510.

Sales tax rates in Sioux County are determined by eleven different tax jurisdictions, Alton, Boyden, Chatsworth, Granville, Hospers, Hull, Ireton, Matlock, Maurice, Rock Valley and Sioux Center.

Back to Iowa Sales Tax Handbook Sales tax rates for Sioux County are current as of June 2026