What is the sales tax in Union city? - The sales tax in Union city of Washington is 8.6% as of 2025. Use the Union sales tax calculator to calculate the sales tax for any purchase in Union.
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Below is a list of the state sales tax, city sales tax, and county tax rate for Union.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Mason | Washington | Union | 98592 | 6.5% | 0% | 2.1% | 8.6% |