Marathon County property record for 509 S 4th Ave, Wausau, WI 54401
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · built 1934 |
| Lot Size | 0.16 acres (6,970 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $2,164 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 291-2907-351-0064 |
| Primary APN | 291-2907-351-0064 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Fireplace | Fireplace |
| Year Built | Built 1934 |
|---|---|
| Exterior Material | Composition/Composite |
| Lot Area | 6,970 sqft (0.16 acres) |
| Garage Type | Detached |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 509 S 4TH AVE |
|---|---|
| City | WAUSAU |
| State | WI |
| Zip | 54401-4610 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R3 |
| Legal Description | STEWART & ALEXANDERS ADD LOT 18 BLK 1 AS SHN ON CSM VOL 9 PG 114 |
| Legal Range | 07 |
| Legal Township | 29 |
| Legal Section | 35 |
| Legal Quarter | NE |
| Legal Subdivision | STEWART & ALEXANDERS ADD |
| Legal Block | 1 |
| Legal Lot Number | 18 |
| Jurisdiction | MARATHON WI |
| Township / Civil Division | WAUSAU |
| Census Block Group | 4 |
| Census Block | 4024 |
| Census Tract | 100 |
Source: Marathon County records, as of February 9, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Co-owner | Co-owner on Record |
| Mailing Address | 509 S 4TH AVE, WAUSAU, WI 54401-4610 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Jun 8, 2026 |
Source: Marathon County assessment roll, as of January 1, 2024
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Marathon County |
| Municipality | Wausau City |
| Unified School District | Wausau School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $2,164.00 (-5.3%) | $126,800 (+22.16%) Land $17,100 Building $109,700 | $133,085 (+6.94%) Land $17,948 Building $115,137 |
| 2023 | $2,285.00 Homeowner's exemption | $103,800 Land $16,500 Building $87,300 | $124,447 Land $19,782 Building $104,665 |
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 September 18, 2026
| 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 | WAUSAU WATERWORKS serves 39,994 people · EPA ID WI7370102 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Dec 2023 |
| Lead | 6 ppb (2020) 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.
Source: FCC Broadband Data Collection, based on 436 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| TDS Telecom Fiber | 8,000 / 8,000 |
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| AT&T Fixed Wireless | 100 / 20 |
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