Portage County property record for 431 Mill St, Amherst, WI 54406
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.389 acres (16,945 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $25,000 (Aug 2018) |
| Tax Bill | $1,813 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 102231022-09.28 |
| Primary APN | 102231022-09.28 |
|---|
| Lot Area | 16,945 sqft (0.389 acres) |
|---|
| Street Address | 431 MILL ST |
|---|---|
| City | AMHERST |
| State | WI |
| Zip | 54406-9292 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1, CSM #011386 DOC-864895 BNG PRT NESW S22 T23 R10.389A 680566;757066;849941TXD;860200 |
| Legal Range | 10E |
| Legal Township | 23N |
| Legal Section | 22 |
| Legal Lot Number | 1 |
| Jurisdiction | PORTAGE WI |
| Township / Civil Division | AMHERST |
| Census Block Group | 3 |
| Census Block | 3047 |
| Census Tract | 960600 |
431 Mill St is owned by two individuals who bought it in August 2018.
Source: Portage County records, as of May 11, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 706 S GUTHRIE ST, RANKIN, IL 60960-7110 |
| 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 14, 2018 · Amount on File |
| Deed Sale | Aug 14, 2018 · Amount on File |
| Deed Document Number | 2018842356 |
| Record Updated | Jun 8, 2026 |
The 2025 property tax bill for 431 Mill St was $1,813.
Source: Portage County assessment roll, as of May 11, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| Municipality | Amherst Village |
| County | Portage County |
| Unified School District | Tomorrow River School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,813.00 | $113,200 Land $29,400 Building $83,800 | $133,100 |
| 2023 | $1,362.00 | $113,200 Land $29,400 Building $83,800 | $109,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 431 Mill St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective June 9, 2023
| 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 431 Mill 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 | Direct burnable vegetation |
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 | AMHERST WATERWORKS serves 1,119 people · EPA ID WI7500094 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 2025 |
| Lead | 6 ppb (2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line inventory Oct 2024 |
| Monitoring and Reporting | 5 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 93 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Amherst Communications Fiber | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: AT&T.
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