Jefferson County property record for 520 Knowlton St, Waterloo, WI 53594
| Property Type | Single Family Home |
|---|---|
| Lot Size | 1.12 acres (49,049 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $93,000 (Sep 2002) |
| Tax Bill | $4,670 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 290-0813-0713-037 |
| Primary APN | 290-0813-0713-037 |
|---|
| Lot Area | 49,049 sqft (1.12 acres) |
|---|
| Street Address | 520 KNOWLTON ST |
|---|---|
| City | WATERLOO |
| State | WI |
| Zip | 53594-1425 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 1, CSM 4218-21-19. |
| Legal Range | 13E |
| Legal Township | 08N |
| Legal Section | 07 |
| Legal Quarter | NE |
| Quarter-Quarter Section | SW |
| Legal Subdivision | CERTIFIED SURV MAP #4218 |
| Legal Lot Number | 1 |
| Jurisdiction | JEFFERSON WI |
| Township / Civil Division | WATERLOO |
| Census Block Group | 1 |
| Census Block | 1035 |
| Census Tract | 100400 |
520 Knowlton St is owned and occupied by two individuals who bought it in September 2002.
Source: Jefferson County records, as of February 16, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Co-owner | Co-owner on File |
| Mailing Address | 520 KNOWLTON ST, WATERLOO, WI 53594-1425 |
| 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 | 2 Names on Deed |
|---|---|
| Last Sale | Sep 5, 2002 · Amount on File |
| Deed Sale | Sep 5, 2002 · Amount on File |
| Deed Document Number | 1093803 |
| Record Updated | Jun 8, 2026 |
The 2025 property tax bill for 520 Knowlton St was $4,670 with a homeowner's exemption.
Source: Jefferson County assessment roll, as of May 31, 2025
| Type | Name |
|---|---|
| State | Wisconsin |
| County | Jefferson County |
| Municipality | Waterloo City |
| Unified School District | Waterloo School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,670.00 Homeowner's exemption | $254,900 Land $70,000 Building $184,900 | $281,300 |
| 2023 | $3,795.00 Homeowner's exemption | $189,200 Land $57,500 Building $131,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 520 Knowlton St in Zone X, an area of minimal flood risk, though there have been 11 flood claims nearby since 1979.
Source: FEMA National Flood Hazard Layer, effective November 5, 2020 · 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 |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 11 (1979–2008) |
| Claims Outside the SFHA | 1 of 11 |
| Most Recent Claim | Jun 2008 · Severe Storms, Tornadoes, And Flooding |
| Claims by Event |
|
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 520 Knowlton St is low, with a 0.03% 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 | 0.03% 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 | WATERLOO WATERWORKS serves 3,520 people · EPA ID WI1280115 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Nov 2023 |
| Lead | 1 ppb (2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line replacement Oct 2019 Lead public education Jan 2018 |
| 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 72 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 / 50 |
| Bertram Communications Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| Netwurx Fixed Wireless | 100 / 20 |
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