County rate guide · Reviewed August 11, 2026
St. Croix County, Wisconsin Sales Tax Rate
The combined sales tax rate in St. Croix County, Wisconsin is 5.5% as of 2026. That includes the Wisconsin state rate of 5%.
Sales tax calculator for St. Croix County
- Sales tax (5.5%)
- $5.50
- Total with tax
- $105.50
How this rate is composed
The Wisconsin state sales tax rate is 5%. The combined 5.5% rate for St. Croix County comes from Streamlined Sales Tax Governing Board rate file (2026 Q3).
State rate (5%) plus the county local rate from the state's SSTGB rate file.
The City of Milwaukee imposes an additional city sales tax on top of the county rate.
Rates change on official schedules — confirm the current rate and effective date against the source above before filing.
Related local sales tax rates in Wisconsin
Compare the county and same-type jurisdictions with the closest combined rates.
St. Croix County sales tax questions
What is the sales tax rate in St. Croix County, Wisconsin?
The combined sales tax rate is 5.5%. It includes the Wisconsin state rate of 5% and applicable local rates.
How much sales tax is charged on a $100 purchase in St. Croix County?
At the 5.5% combined rate, a $100 taxable purchase produces $5.50 in sales tax.
When was the St. Croix County sales tax rate reviewed?
Prophit.ai reviewed this guide on 2026-08-11 using Streamlined Sales Tax Governing Board rate file. Confirm the official source before filing because rates can change.
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