What is the sales tax in zip code 37166? - The sales tax in zip code 37166 in Smithville, Tennessee is 9.75% as of 2025. Use the 37166 sales tax rate calculator to calculate the sales tax for any purchase in 37166.
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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 |
|---|---|---|---|---|---|---|---|
| DeKalb | Tennessee | Smithville | 37166 | 7% | 0% | 2.75% | 9.75% |