Jefferson County property record for 550 Knowlton St, Waterloo, WI 53594
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.38 acres (16,553 sqft) |
| Owner | Individual Name on File |
| Last Sale | $160,000 (Aug 2021) |
| Tax Bill | $3,666 (2025) |
| Deeds & Mortgages | Mar 2022 Mortgage Aug 2021 Sale + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 290-0813-0713-035 |
| Primary APN | 290-0813-0713-035 |
|---|
| Lot Area | 16,553 sqft (0.38 acres) |
|---|
| Street Address | 550 KNOWLTON ST |
|---|---|
| City | WATERLOO |
| State | WI |
| Zip | 53594-1425 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 2, CSM 141-1-181, DOC 702455. |
| Legal Range | 13E |
| Legal Township | 08N |
| Legal Section | 07 |
| Legal Quarter | NE |
| Quarter-Quarter Section | SW |
| Legal Subdivision | CERTIFIED SURV MAP 141 |
| Legal Lot Number | 2 |
| Jurisdiction | JEFFERSON WI |
| Township / Civil Division | WATERLOO |
| Census Block Group | 1 |
| Census Block | 1035 |
| Census Tract | 100400 |
550 Knowlton St is owned and occupied by an individual who bought it in August 2021.
Source: Jefferson County records, as of February 16, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 550 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.
| Date | Document |
|---|---|
| Mar 3, 2022 | Deed of Trust, Mortgage · Conventional Mortgage UNIVERSITY OF WISCONSIN CU |
| Aug 16, 2021 | Deed, Transfer |
| Aug 16, 2021 | Warranty Deed, Transfer · Conventional Mortgage BANK OF SUN PRAIRIE |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 16, 2021 · Amount on File |
| Deed Sale | Aug 16, 2021 · Amount on File |
| Prior Sale | Aug 16, 2021 |
| Deed Document Number | 1450355 |
| Record Updated | Jun 8, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | JEFFERSON WI |
| Property Address | 550 KNOWLTON ST, WATERLOO, WI 53594-1425 |
| Transaction Type | Mortgage |
| Record Updated | Mar 23, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0001459577 |
|---|---|
| Date | Mar 3, 2022 |
| Instrument | 1459577 |
| Name | UNIVERSITY OF WISCONSIN CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 2, 2052 |
| Rate Type | Fixed Rate |
|---|
| Document Type | Deed |
|---|---|
| Jurisdiction | JEFFERSON WI |
| Recording Date | Aug 16, 2021 |
| Property Address | 550 KNOWLTON ST, WATERLOO, WI 53594-1425 |
| Document Number | 0001450354 |
| Map Reference | DOC 702455 |
| Instrument Date | Aug 13, 2021 |
| Instrument | 1450354 |
| Transaction Type | Transfer |
| Record Updated | Sep 8, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 550 KNOWLTON ST, 550, WATERLOO, WI 53594-1425 |
| Name | Verified Name |
|---|---|
| Address | 550 KNOWLTON ST, WATERLOO, WI 53594-1425 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | JEFFERSON WI |
| Recording Date | Aug 16, 2021 |
| Property Address | 550 KNOWLTON ST, WATERLOO, WI 53594-1425 |
| Document Number | 0001450355 |
| Map Reference | DOC 702455 |
| Instrument Date | Aug 13, 2021 |
| Instrument | 1450355 |
| Transaction Type | Transfer |
| Record Updated | Sep 8, 2021 |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $480.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 550 KNOWLTON ST, WATERLOO, WI 53594-1425 |
| Document Number | 0001450356 |
|---|---|
| Date | Aug 16, 2021 |
| Instrument | 1450356 |
| Name | BANK OF SUN PRAIRIE |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 550 Knowlton St was $3,666 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 | $3,666.00 Homeowner's exemption | $200,100 Land $50,500 Building $149,600 | $220,800 |
| 2023 | $2,825.00 Homeowner's exemption | $141,700 Land $42,000 Building $99,700 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 550 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 550 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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