Waukesha County property record for 645 E Madison St, Oconomowoc, WI 53066
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 944 sqft |
| Lot Size | 0.24 acres (10,454 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $3,395 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | OCOC-0561-391 |
| Primary APN | OCOC-0561-391 |
|---|
| Lot Area | 10,454 sqft (0.24 acres) |
|---|
| Street Address | 645 E MADISON ST |
|---|---|
| City | OCONOMOWOC |
| State | WI |
| Zip | 53066-2956 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PT NE1/4 SEC 33 T8N R17E COM NW COR S4447E 46.7 FT S025E 934 FT N8935E 120 FT S025E 362.1 FT N8841E 308 FT THE BGN N8841E 88 FT S025E 120 FT S8841W 88 FT N035W 120 FT TO BGN ALSO KNOWN AS LOTS 26-29 BLK B UNREC 1ST ADD OCON HEIGHTS R1593/1197 & DOC# |
| Legal Range | 17E |
| Legal Township | 8N |
| Legal Section | 33 |
| Legal Subdivision | ST ADD OCON HEIGHTS |
| Legal Block | 17 |
| Legal Lot Number | 8 |
| Jurisdiction | WAUKESHA WI |
| Township / Civil Division | OCONOMOWOC |
| Census Block Group | 3 |
| Census Block | 3029 |
| Census Tract | 204301 |
Source: Waukesha County records, as of June 23, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 645 E MADISON ST, OCONOMOWOC, WI 53066-2956 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | May 28, 2008 |
| Transfer Doc | 0003576900 |
| Record Updated | Sep 20, 2026 |
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 | $3,395.00 (+9.45%) | $327,800 (+17.62%) Land $75,500 Building $252,300 | $332,600 (+14.33%) |
| 2023 | $3,102.00 Homeowner's exemption | $278,700 Land $75,500 Building $203,200 | $290,900 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective October 19, 2025
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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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