Winnebago County property record for 621 Frederick St, Oshkosh, WI 54901
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 1,090 sqft · built 1947 |
| Lot Size | 0.123 acres (5,350 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $2,904 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 07-03610000 |
| Primary APN | 07-03610000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 1,090 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | Ranch |
| Exterior Material | Other |
| Lot Area | 5,350 sqft (0.123 acres) |
| Lot Dimensions | 107 ft deep x 50 ft wide |
| Garage Type | Detached |
| Garage Area | 240 sqft |
| Heating System | HVAC |
|---|---|
| Heating Fuel | Gas |
| Account Number | 907-03610000 |
|---|---|
| Street Address | 621 FREDERICK ST |
| City | OSHKOSH |
| State | WI |
| Zip | 54901-4425 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R2 |
| Legal Description | LOT 11 BLK 45 W W WRIGHTS SUBD OF PART OF BLK 45 & F |
| Legal Subdivision | W W WRIGHTS SUBD |
| Legal Block | 45 |
| Legal Lot Number | 11 |
| Jurisdiction | WINNEBAGO WI |
| Township / Civil Division | OSHKOSH |
| Census Block Group | 4 |
| Census Block | 4013 |
| Census Tract | 502 |
621 Frederick St, a single family home, is owned by an individual.
Source: Winnebago County records, as of June 9, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 341 W HIGH ST, SEYMOUR, WI 54165-1525 |
| 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 | Sep 20, 2026 |
Source: Winnebago County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Winnebago County |
| Municipality | Oshkosh City |
| Unified School District | Oshkosh Area School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $155,500 Land $21,200 Building $134,300 | ||
| 2024 | $2,904.00 (+26.87%) | ||
| 2023 | $2,289.00 (+0.26%) | $78,500 (-) Land $13,300 Building $65,200 | $113,434 Land $19,219 Building $94,215 |
| 2022 | $2,283.00 | $78,500 Land $13,300 Building $65,200 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 621 Frederick St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective March 26, 2019
| 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.
The area around 621 Frederick St has no burnable land within ember reach, so its wildfire risk is not rated.
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 | OSHKOSH WATERWORKS serves 63,000 people · EPA ID WI4710457 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Apr 2025 |
| Lead | 6 ppb (2025) 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 763 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Bertram Communications Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless · DSL · Fiber in parts of the area | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: TDS Telecom.
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