What is the sales tax in Loudon county? - The sales tax in Loudon county of Tennessee is 9.75% as of 2025. Use the Loudon sales tax calculator to calculate the sales tax for any purchase in Loudon.
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Below is a list of the sales tax rate for each county in Loudon.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Loudon | Tennessee | Greenback | 37742 | 7% | 0% | 2.75% | 9.75% |
| Loudon | Tennessee | Lenoir City | 37771 | 7% | 0.5% | 2% | 9.5% |
| Loudon | Tennessee | Loudon | 37774 | 7% | 0.5% | 2% | 9.5% |
| Loudon | Tennessee | Philadelphia | 37846 | 7% | 0% | 2.75% | 9.75% |