Oconto County property record for 509 Knapp Ave, Oconto, WI 54153
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.24 acres (10,454 sqft) |
| Owner | Company Name on File |
| Last Sale | $6,000 (Sep 2020) |
| Tax Bill | $3,910 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 2651720060805 |
| Primary APN | 2651720060805 |
|---|
| Lot Area | 10,454 sqft (0.24 acres) |
|---|
| Street Address | 509 KNAPP AVE |
|---|---|
| City | OCONTO |
| State | WI |
| Zip | 54153-1342 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | UNZN |
| Legal Description | LOTS 1 & 2 BLK 5 OF L M PALMERS ADD TO CITY OF OCONTO. & 1/2 VACATED ALLEY IN 695824. (86942) |
| Legal Range | 22E |
| Legal Township | 28N |
| Legal Section | 20 |
| Legal Subdivision | L M PALMERS ADD |
| Legal Block | 5 |
| Legal Lot Number | 1-2 |
| Jurisdiction | OCONTO WI |
| Township / Civil Division | OCONTO |
| Census Block Group | 3 |
| Census Block | 3044 |
| Census Tract | 101000 |
509 Knapp Ave is owned by a company that acquired it in June 2025.
Source: Oconto County records, as of October 20, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 509 KNAPP AVE, OCONTO, WI 54153-1342 |
| Owner Type | Company |
| Vesting | Life Tenant |
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 |
|---|---|
| Last Sale | Sep 11, 2020 · Amount on File |
| Deed Sale | Sep 11, 2020 · Amount on File |
| Last Transfer Date | Jun 13, 2025 |
| Transfer Doc | 0000776622 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 509 Knapp Ave was $3,910.
Source: Oconto County assessment roll, as of April 14, 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Oconto County |
| Municipality | Oconto City |
| Unified School District | Oconto School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $3,910.00 | $254,800 Land $12,000 Building $242,800 | $259,300 Land $12,212 Building $247,088 |
| 2023 | $3,644.00 | $136,200 Land $12,900 Building $123,300 | $209,400 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 509 Knapp Ave in Zone X, an area of minimal flood risk, though there have been 32 flood claims nearby since 1985.
Source: FEMA National Flood Hazard Layer, effective May 18, 2023 · 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 |
| Flood Insurance Cost | Premium on File median of 20 policies |
| Nearby Flood Policies | 20 in force |
| Nearby Flood Claims | 32 (1985–2019) |
| Claims Outside the SFHA | 6 of 32 |
| Most Recent Claim | Dec 2019 · river or lake flooding |
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 509 Knapp Ave 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 | None beyond 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 | OCONTO WATERWORKS serves 4,583 people · EPA ID WI4430495 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Feb 2026 |
| Lead | 3 ppb (2023) action level 15 ppb |
| Water Quality | Radium resolved · Jan 2019 |
|---|---|
| Treatment and Procedure | Lead service line inventory Oct 2024 |
| 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 296 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Brightspeed Fiber | 2,000 / 2,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Bertram Communications Fixed Wireless | 100 / 20 |
May also be available: Bug Tussel Wireless.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures