Marathon County property record for 601 Willow St, Mosinee, WI 54455
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.369 acres (16,117 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $4,796 (2025) |
| Deeds & Mortgages | Aug 2023 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 251-2707-312-9993 |
| Primary APN | 251-2707-312-9993 |
|---|---|
| Alternative APN |
|
| Lot Area | 16,117 sqft (0.369 acres) |
|---|
| Street Address | 601 WILLOW ST |
|---|---|
| City | MOSINEE |
| State | WI |
| Zip | 54455-2014 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SEC 31-27-07 PT OF N 1/2 NW FRL 1/4 - LOT 1 CSM VOL 14 PG 122 (#3824) (DOC #835290) |
| Legal Range | 07 |
| Legal Township | 27 |
| Legal Section | 31 |
| Legal Quarter | NW |
| Legal Subdivision | CERTIFIED SURV MAP 3824 |
| Legal Lot Number | 1 |
| Jurisdiction | MARATHON WI |
| Township / Civil Division | MOSINEE |
| Census Block Group | 1 |
| Census Block | 1025 |
| Census Tract | 1202 |
601 Willow St is owned and occupied by two individuals.
Source: Marathon County records, as of February 9, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 601 WILLOW ST, MOSINEE, WI 54455-2014 |
| 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 | Name on Deed |
|---|---|
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MARATHON WI |
| Property Address | 601 WILLOW ST, MOSINEE, WI 54455-2014 |
| Transaction Type | Mortgage |
| Record Updated | Apr 23, 2024 |
| Name | Verified Name |
|---|
| Document Number | 0001885911 |
|---|---|
| Date | Aug 15, 2023 |
| Instrument | 1885911 |
| Name | COVANTAGE CU |
|---|---|
| Type | Credit Union |
| Address | ANTIGO, WI 54409 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 120 Months |
| Due | Aug 15, 2033 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
The 2025 property tax bill for 601 Willow St was $4,796 with a homeowner's exemption.
Source: Marathon County assessment roll, as of January 1, 2024
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Marathon County |
| Municipality | Mosinee City |
| Unified School District | Mosinee School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,796.00 | $248,800 Land $27,900 Building $220,900 | $354,250 Land $39,725 Building $314,525 |
| 2023 | $4,444.00 Homeowner's exemption | $248,800 Land $27,900 Building $220,900 | $314,680 Land $35,288 Building $279,392 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 601 Willow St in Zone X, an area of minimal flood risk.
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.
Wildfire risk around 601 Willow St is low, with 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 80% of the US · above 57% of Wisconsin |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect 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 | MOSINEE WATERWORKS serves 3,406 people · EPA ID WI7370159 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Nov 2025 |
| Lead | 2 ppb (2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 123 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 1,000 |
| TDS Telecom Fiber | 1,000 / 1,000 |
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