Sales tax in Oconomowoc Lake, WI
The combined sales tax rate in Oconomowoc Lake, WI is about 5.5%, and ranges from 5% to 5.5% depending on the exact address.
Estimated from 1 ZIP code covering Oconomowoc Lake. Enter your ZIP code in the calculator for a closer figure.
- ZIP code
- 53066, shared with Ashippun town, Concord town, Delafield, Delafield town, Dousman, Erin town, Genesee town, Ixonia town, Lac La Belle, Lebanon town, Merton town, Oconomowoc, Oconomowoc town, Ottawa town and Summit.
- County
- Waukesha
Who levies sales tax across Oconomowoc Lake's ZIP code
Each government below levies its own share, but not all of them reach every address: the ZIP code covering Oconomowoc Lake reaches into more than one county and city, and an address pays only the shares whose boundary it falls inside.
No total is shown because more than one county and city is listed. An address falls inside only one of each, so these shares are alternatives rather than a stack, and adding them all up would give a figure nobody pays.
What can change the tax you pay in Oconomowoc Lake, WI
- A shared ZIP code. Oconomowoc Lake's only ZIP code, 53066, is shared with Ashippun town, Concord town, Delafield, Delafield town, Dousman, Erin town, Genesee town, Ixonia town, Lac La Belle, Lebanon town, Merton town, Oconomowoc, Oconomowoc town, Ottawa town and Summit. Which side of the city line an address is on decides whose rate applies, and the ZIP code alone cannot tell.
- Your exact address. Dodge, Jefferson, Washington and Waukesha cover only part of this area, so an address inside them is taxed differently from one just outside. A ZIP code is a postal delivery route and was never drawn to follow tax boundaries.
- What you are buying. Categories are not taxed alike. The calculator switches between general merchandise, prepared food and lodging, which are the categories we hold rates for here.
How Oconomowoc Lake compares with the rest of Wisconsin
Oconomowoc Lake's ~5.5% is the most common combined rate in Wisconsin. Of the state's 894 ZIP codes with a figure, 792 land on the same one, 56 carry a lower figure and 46 a higher one. Across Wisconsin the combined rate runs from 5% to 7.9%. See every city in Wisconsin.
| Combined rate | ZIP codes | Which is this city |
|---|---|---|
| ~5.5% | 792 | Oconomowoc Lake |
| ~5% | 56 | |
| ~7.9% | 31 | |
| ~5.9% | 15 |
Counted from ZIP-code figures. A tilde marks a band where some ZIP codes cross a tax boundary and are counted at their most likely rate.
How sales tax is collected
The seller generally collects the tax from the buyer at the point of sale and passes it to the authorities that levied it. In most states it is added at the till rather than included in the advertised price. Read how sales tax works, including sourcing rules, online purchases and who is required to collect.
Rates last verified: Sep 4, 2026. This is when the source was last read, not when this page was last edited.
TaxAndTips provides informational estimates from published tax-rate data. Actual tax treatment can depend on the product or service, the exact address, the transaction, exemption status and applicable law. For official obligations, consult the taxing authority or a qualified tax professional.
Why you can rely on these figures
- Published rates
- State and local rates compiled from the tax authorities that levy them.
- Every figure sourced
- See the jurisdiction breakdown and the document each rate came from.
- No signup
- Use the calculator immediately. Nothing to create, nothing to install.
- Missing means missing
- Where a rate is not verified we say so instead of showing a short total.