Winnebago County property record for 4237 State Rd 21, Oshkosh, WI 54904
| Property Type | Single Family Home |
|---|---|
| Lot Size | 2.28 acres (99,752 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $8,212 (2024) |
| Deeds & Mortgages | Dec 2023 Transfer Jun 2021 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 002-0185-03 |
| Primary APN | 002-0185-03 |
|---|---|
| Alternative APN |
|
| Lot Area | 99,752 sqft |
|---|
| Account Number | 4025 |
|---|---|
| Street Address | 4237 STATE ROAD 21 |
| City | OSHKOSH |
| State | WI |
| Zip | 54904-9323 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R5 |
| Legal Description | PT NW SW DESC AS LOT 3 OF CSM-6162 2.29 A. |
| Legal Range | 16E |
| Legal Township | 18N |
| Legal Section | 18 |
| Legal Subdivision | CERTIFIED SURV MAP |
| Legal Lot Number | 3 |
| Jurisdiction | WINNEBAGO WI |
| Township / Civil Division | ALGOMA |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 1803 |
4237 State Rd 21 is owned and occupied by an individual who acquired it in December 2023.
Source: Winnebago County records, as of May 27, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 4237 STATE ROAD 21, OSHKOSH, WI 54904-9323 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Dec 28, 2023 | Intrafamily Transfer, Transfer |
| Jun 3, 2021 | Deed of Trust, Mortgage · Line of Credit FORTIFI BANK |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Dec 7, 2023 |
| Transfer Doc | 0001915719 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | WINNEBAGO WI |
| Recording Date | Dec 28, 2023 |
| Property Address | 4237 STATE ROAD 21, OSHKOSH, WI 54904-9323 |
| Document Number | 0001915719 |
| Map Reference | DOC 1451374 |
| Instrument Date | Dec 7, 2023 |
| Instrument | 1915719 |
| Transaction Type | Transfer |
| Record Updated | Jan 19, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 4237 STATE ROAD 21, OSHKOSH, WI 54904-9323 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | WINNEBAGO WI |
| Property Address | 4237 STATE ROAD 21, OSHKOSH, WI 54904-9323 |
| Transaction Type | Mortgage |
| Record Updated | Jun 26, 2023 |
| Name | Verified Name |
|---|
| Document Number | 0001853429 |
|---|---|
| Date | Jun 3, 2021 |
| Instrument | 1853429 |
| Name | FORTIFI BANK |
|---|---|
| Type | Bank |
| Address | BERLIN, WI 54923 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 239 Months |
| Due | May 25, 2041 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
Source: Winnebago County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Winnebago County |
| County Subdivision | Algoma Town |
| Unified School District | Oshkosh Area School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $706,600 Land $68,200 Building $638,400 | ||
| 2024 | $8,212.00 (-11.53%) | ||
| 2023 | $9,282.00 (+3.34%) Homeowner's exemption | $534,600 (-) Land $51,700 Building $482,900 | $705,147 (+409.04%) Land $68,193 Building $636,954 |
| 2022 | $8,982.00 Homeowner's exemption | $534,600 Land $51,700 Building $482,900 | $138,524 Building $138,524 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 4237 State Rd 21 in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective March 26, 2019 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 1 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 4237 State Rd 21 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 98% of the US · lower than 94% of Wisconsin |
|---|---|
| Wildfire Likelihood | Under 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: FCC Broadband Data Collection, based on 6 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Starlink Satellite | 280 / 30 |
| Bertram Communications Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fixed Wireless | 100 / 20 |
| Verizon Fixed Wireless | 25 / 6 |
May also be available: Spectrum.
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