Wisconsin Sales Tax Rates: Waukesha County
Waukesha County, Wisconsin Sales Tax Rate 2026 Up to 5.9%
A county-wide sales tax rate of 0.5% is applicable to localities in Waukesha County, in addition to the 5% Wisconsin sales tax.
Some cities and local governments in Waukesha County collect additional local sales taxes, which can be as high as 0.4%.Here's how Waukesha County's maximum sales tax rate of 5.9% compares to other counties around the United States:
- Higher maximum sales tax than 90% of Wisconsin counties
- Lower maximum sales tax than 90% of counties nationwide
Tax Rates By City in Waukesha County, Wisconsin
The total sales tax rate in any given location can be broken down into state, county, city, and special district rates. Wisconsin has a 5% sales tax and Waukesha County collects an additional 0.5%, so the minimum sales tax rate in Waukesha County is 5.5% (not including any city or special district taxes). This table shows the total sales tax rates for all cities and towns in Waukesha County, including all local taxes.
| City | Sales Tax Rate | Tax Jurisdiction |
|---|---|---|
| Waukesha | 5% | Waukesha |
| Brookfield | 5% | Waukesha |
| Menomonee Falls | 5.5% | Baseball Stadium District Washington Co |
| Oconomowoc | 5.5% | Jefferson |
| New Berlin | 5.9% | West Allis |
| Muskego | 5.5% | Racine |
| Pewaukee | 5% | Waukesha |
| Hartland | 5.5% | Baseball Stadium District Washington Co |
| Mukwonago | 5.5% | Mukwonago Village Waukesha Co |
| Sussex | 5% | Waukesha |
| New Berlin | 5% | Waukesha |
| Delafield | 5% | Waukesha |
| Dousman | 5.5% | Jefferson |
| Elm Grove | 5% | Waukesha |
| Eagle | 5.5% | Jefferson |
| Big Bend | 5% | Waukesha |
| Nashotah | 5% | Waukesha |
| Wales | 5% | Waukesha |
| North Prairie | 5% | Waukesha |
| Butler | 5.9% | Wauwatosa |
| Lannon | 5% | Waukesha |
| Okauchee | 5% | Waukesha |
| Brookfield | 5% | Brookfield |
| Genesee Depot | 5% | Waukesha |
| North Lake | 5% | Waukesha |
| Menomonee Falls | 5% | Waukesha |
| Merton | 5% | Waukesha |
Wisconsin Sales Tax Rates by Zip Code:
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Waukesha County, Wisconsin has a maximum sales tax rate of 5.9% and an approximate population of 356,212.
Sales tax rates in Waukesha County are determined by eight different tax jurisdictions, Baseball Stadium District Washington Co, Brookfield, Jefferson, Mukwonago Village Waukesha Co, Racine, Waukesha, Wauwatosa and West Allis.
Back to Wisconsin Sales Tax Handbook Sales tax rates for Waukesha County are current as of June 2026
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