What is the sales tax in Sioux county? - The sales tax in Sioux county of Iowa is 4.2% as of 2025. Use the Sioux sales tax calculator to calculate the sales tax for any purchase in Sioux.
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Below is a list of the sales tax rate for each county in Sioux.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Sioux | Iowa | Alton | 51003 | 6% | 0% | 1% | 7% |
| Sioux | Iowa | Boyden | 51234 | 6% | 0% | 1% | 7% |
| Sioux | North Dakota | Cannon Ball | 58528 | 5% | 0% | 0% | 5% |
| Sioux | Iowa | Chatsworth | 51011 | 6% | 0% | 1% | 7% |
| Sioux | North Dakota | Fort Yates | 58538 | 5% | 0% | 0% | 5% |
| Sioux | Iowa | Granville | 51022 | 6% | 0% | 1% | 7% |
| Sioux | Nebraska | Harrison | 69346 | 5.5% | 1.5% | 0% | 7% |
| Sioux | Iowa | Hawarden | 51023 | 6% | 0% | 1% | 7% |
| Sioux | Iowa | Hospers | 51238 | 6% | 0% | 1% | 7% |
| Sioux | Iowa | Hull | 51239 | 6% | 0% | 1% | 7% |
| Sioux | Iowa | Ireton | 51027 | 6% | 0% | 1% | 7% |
| Sioux | Iowa | Matlock | 51244 | 6% | 0% | 1% | 7% |
| Sioux | Iowa | Maurice | 51036 | 6% | 0% | 1% | 7% |
| Sioux | Iowa | Orange City | 51041 | 6% | 0% | 1% | 7% |
| Sioux | Iowa | Rock Valley | 51247 | 6% | 0% | 1% | 7% |
| Sioux | North Dakota | Selfridge | 58568 | 5% | 0% | 0% | 5% |
| Sioux | Iowa | Sioux Center | 51250 | 6% | 0% | 1% | 7% |