What is the sales tax in zip code 77345? - The sales tax in zip code 77345 in Kingwood, Texas is 8.25% as of 2025. Use the 77345 sales tax rate calculator to calculate the sales tax for any purchase in 77345.
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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 |
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| Harris | Texas | Kingwood | 77345 | 6.25% | 1% | 0% | 8.25% |