What is the sales tax in zip code 57702? - The sales tax in zip code 57702 in Rapid City, South Dakota is 6.2% as of 2025. Use the 57702 sales tax rate calculator to calculate the sales tax for any purchase in 57702.
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Below is a list of the state sales tax, city sales tax, and county tax rate for .
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Pennington | South Dakota | Rapid City | 57702 | 4.2% | 2% | 0% | 6.2% |