What is the sales tax in Wentzville city? - The sales tax in Wentzville city of Missouri is 10.45% as of 2025. Use the Wentzville sales tax calculator to calculate the sales tax for any purchase in Wentzville.
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Below is a list of the state sales tax, city sales tax, and county tax rate for Wentzville.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| St. Charles | Missouri | Wentzville | 63385 | 4.225% | 2.5% | 1.725% | 10.45% |