La Crosse County property record for 521 3rd Ave S, Onalaska, WI 54650
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.14 acres (6,098 sqft) |
| Owner | Individual Name on File |
| Last Sale | $245,000 (May 2026) |
| Tax Bill | $2,894 (2025) |
| Deeds & Mortgages | May 2026 Sale & Mortgage Sep 2019 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 018-000187-000 |
| Primary APN | 018-000187-000 |
|---|---|
| Alternative APNs |
|
| Lot Area | 6,098 sqft (0.14 acres) |
|---|
| Street Address | 521 3RD AVE S |
|---|---|
| City | ONALASKA |
| State | WI |
| Zip | 54650-3227 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | MZA |
| Legal Description | ORIGINAL TOWN OF ONALASKA LOT 6 BLOCK 23 |
| Legal Range | 07W |
| Legal Township | 16N |
| Legal Section | 08 |
| Legal Subdivision | ORIGINAL TOWN OF ONALASKA |
| Legal Block | 23 |
| Legal Lot Number | 6 |
| Jurisdiction | LA CROSSE WI |
| Township / Civil Division | ONALASKA |
| Census Block Group | 4 |
| Census Block | 4034 |
| Census Tract | 10500 |
Source: La Crosse County records · APN 018-000187-000
Assessment roll updated March 11, 2026 · Last verified May 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 521 3RD AVE S, ONALASKA, WI 54650-3227 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| May 06, 2026 | Warranty Deed, Transfer · Conventional Mortgage ALTRA FEDERAL CREDIT UNION |
| Sep 04, 2019 | Warranty Deed, Transfer · Conventional Mortgage AMERICAN MTG & EQUITY CONSULT |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | May 06, 2026 · Amount on Record |
| Deed Sale | May 06, 2026 · Amount on Record |
| Prior Sale | Sep 04, 2019 · Amount on Record |
| Deed Document Number | 20261848670 |
| Prior Transfer Date | Sep 05, 2007 |
| Prior Transfer Doc | 0001493172 |
| Record Updated | Sep 20, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | LA CROSSE WI |
| Recording Date | May 06, 2026 |
| Property Address | 521 3RD AVE S, ONALASKA, WI 54650-3227 |
| Document Number | 0001848670 |
| Instrument Date | May 06, 2026 |
| Instrument | 2026.1848670 |
| Transaction Type | Transfer |
| Record Updated | May 20, 2026 |
| Title Company | BRIDGE POINT TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $74,235.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 521 3RD AVE S, ONALASKA, WI 54650-3227 |
| Document Number | 0001848671, |
|---|---|
| Date | May 06, 2026 |
| Instrument | 2026.1848671 |
| Name | ALTRA FEDERAL CREDIT UNION |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jun 01, 2056 |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 6.38% |
| Initial Type | Fixed Rate |
| Max Rate | -1% |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | LA CROSSE WI |
| Recording Date | Sep 04, 2019 |
| Property Address | 521 3RD AVE S, ONALASKA, WI 54650-3227 |
| Document Number | 0001731913 |
| Instrument Date | Aug 30, 2019 |
| Instrument | 1731913 |
| Transaction Type | Transfer |
| Record Updated | Sep 08, 2022 |
| Title Company | NEW CUSTOM TITLE, NEW CASTLE TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $477.00 |
| Amount Accuracy | Calculated from Transfer Tax |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|
| Document Number | 0001731914 |
|---|---|
| Date | Sep 04, 2019 |
| Instrument | 1731914 |
| Name | AMERICAN MTG & EQUITY CONSULT |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Fixed Rate |
|---|
Source: La Crosse County records · Assessment roll updated March 11, 2026 · Last verified May 2026
| Type | Name |
|---|---|
| State | Wisconsin |
| County | La Crosse County |
| Municipality | Onalaska City |
| Unified School District | Onalaska School District (PK - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $2,894.00 (-8.19%) Homeowner's exemption | $229,600 (+22.98%) Land $42,700 Building $186,900 | $232,300 (+24.42%) |
| 2023 | $3,152.00 Homeowner's exemption | $186,700 Land $30,500 Building $156,200 | $186,700 Land $30,500 Building $156,200 |
Source: FEMA National Flood Hazard Layer as of February 3, 2023 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 3 (1997–2004) |
| Most Recent Claim | Aug 2004 · river or lake flooding |
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
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.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| TDS Telecom Fiber | 8,000 / 8,000 |
| Brightspeed Fiber | 2,000 / 2,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| Starlink Satellite | 280 / 30 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Based on FCC filings for 243 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | ONALASKA WATERWORKS serves 18,000 people |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Dec 2023 |
| Lead | Under 1 ppb (2023) 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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