What is the sales tax for Rockham, South Dakota? - The sales tax for Rockham, South Dakota is 4.2% as of 2026. 4.2% is the combine sales tax from 4.2% of South Dakota state sales tax, 0% of local sales tax, and 0% of Faulk county sales tax.
| State | South Dakota | State Tax | 4.2% |
|---|---|---|---|
| City | Rockham | City Tax | 0% |
| County | Faulk | County Tax | 0% |
| Special Tax | 0% | ||
| Total Sales Tax | 4.2% | ||
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