Waukesha County property record for 203 N Walnut St, Oconomowoc, WI 53066
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1.5 ba · 2,121 sqft |
| Lot Size | 0.16 acres (6,970 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $246,000 (Aug 2012) |
| Tax Bill | $4,339 (2025) |
| Deeds & Mortgages | Mar 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | OCOC-0563-047 |
| Primary APN | OCOC-0563-047 |
|---|
| Lot Area | 6,970 sqft (0.16 acres) |
|---|
| Street Address | 203 N WALNUT ST |
|---|---|
| City | OCONOMOWOC |
| State | WI |
| Zip | 53066-3032 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | WLY 107 FT OF LOT 9 HALLS ADDITION TO OCONOMOWOC PT SW1/4 SEC 33 T8N R17E |
| Legal Range | 17E |
| Legal Township | 8N |
| Legal Section | 33 |
| Legal Subdivision | HALLS ADDITION TO OCONOMOWOC |
| Legal Lot Number | 9 |
| Jurisdiction | WAUKESHA WI |
| Township / Civil Division | OCONOMOWOC |
| Census Block Group | 4 |
| Census Block | 4039 |
| Census Tract | 204301 |
203 N Walnut St is owned and occupied by two individuals who acquired it in March 2021.
Source: Waukesha County records, as of June 23, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 203 N WALNUT ST, OCONOMOWOC, WI 53066-3032 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 31, 2012 · Amount on File |
| Deed Sale | Aug 31, 2012 · Amount on File |
| Prior Sale | Apr 23, 2004 · Amount on File |
| Deed Document Number | 20123946414 |
| Last Transfer Date | Mar 22, 2021 |
| Transfer Doc | 0004570036 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | WAUKESHA WI |
| Recording Date | Mar 26, 2021 |
| Property Address | 203 N WALNUT ST, OCONOMOWOC, WI 53066-3032 |
| Document Number | 0004570036 |
| Instrument Date | Mar 22, 2021 |
| Instrument | 4570036 |
| Transaction Type | Transfer |
| Record Updated | Jun 17, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
The 2025 property tax bill for 203 N Walnut St was $4,339.
Source: Waukesha County assessment roll, as of June 23, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Waukesha County |
| Municipality | Oconomowoc City |
| Unified School District | Oconomowoc Area School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,339.00 | $418,800 Land $66,600 Building $352,200 | $425,000 |
| 2023 | $3,828.00 Homeowner's exemption | $342,800 Land $66,600 Building $276,200 | $357,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 203 N Walnut St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective October 19, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 3 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 203 N Walnut St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 97.9% of Wisconsin |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | OCONOMOWOC WATERWORKS serves 15,805 people · EPA ID WI2680227 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Apr 2025 |
| Lead | 7 ppb (2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 259 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 50 |
| Bertram Communications Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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