603 Main St, Onalaska, WI 54650 Property Records

La Crosse County property record for 603 Main St, Onalaska, WI 54650

Property Summary

Property Type	Single Family Home
Lot Size	0.38 acres (16,553 sqft)
Owner	Individual Name on Record
Last Sale	$1,500 (Jul 2015)
Tax Bill	$3,175 (2025)
Deeds & Mortgages	Jul 2017 Mortgage Jan 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`018-000397-000`

Property Details

APN / Parcel Number

Primary APN	`018-000397-000`
Alternative APNs	`18 397 0` `54363`

Exterior

Lot Area	16,553 sqft (0.38 acres)

Location & Zoning

Account Number	54363
Old Parcel Number	18 397 0
Street Address	603 MAIN ST
City	ONALASKA
State	WI
Zip	54650-2702
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	C.H. NICHOLS ADDITION LOT 1 EX CSM NO. 7 VOL 3 BLOCK 2 & INCL VAC ALLEY IN DOC NO. 1372869
Legal Range	07
Legal Township	16
Legal Section	09
Legal Quarter	NW
Quarter-Quarter Section	NW
Legal Subdivision	C H NICHOLS ADDITION
Legal Block	2
Legal Lot Number	1
Jurisdiction	LA CROSSE WI
Township / Civil Division	ONALASKA
Census Block Group	4
Census Block	4022
Census Tract	10403

Owner

Source: La Crosse County records, as of February 16, 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 Record
Co-owner	Co-owner on Record
Mailing Address	603 MAIN ST, ONALASKA, WI 54650-2702
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Jul 18, 2017	Deed of Trust, Mortgage · Conventional Mortgage ALTRA FCU
Jan 23, 2020	Deed of Trust, Mortgage · Conventional Mortgage ALTRA FCU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 13, 2015 · Amount on Record
Deed Sale	Jul 13, 2015 · Amount on Record
Deed Document Number	1659631
Record Updated	Jun 8, 2026

July 2017: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LA CROSSE WI
Property Address	603 MAIN ST, ONALASKA, WI 54650-2702
Transaction Type	Mortgage
Record Updated	Jun 25, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	1696576
Date	Jul 18, 2017
Instrument	1696576

Lender

Name	ALTRA FCU
Type	Credit Union

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	360 Months
Due	Jul 17, 2047

Interest

Rate Type	Fixed Rate

January 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	LA CROSSE WI
Property Address	603 MAIN ST, ONALASKA, WI 54650-2702
Transaction Type	Mortgage
Record Updated	Jun 25, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	1739950
Date	Jan 23, 2020
Instrument	1739950

Lender

Name	ALTRA FCU
Type	Credit Union

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	120 Months
Due	Feb 15, 2030

Interest

Rate Type	Fixed Rate

Tax Assessment & Valuation

Source: La Crosse County assessment roll, as of January 1, 2025

Property Jurisdictions

Type	Name
State	Wisconsin
County	La Crosse County
Municipality	Onalaska City
Unified School District	Onalaska School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$3,175.00 (-9.9%) Homeowner's exemption	$249,900 (+19.74%) Land $79,200 Building $170,700	$252,800 (+21.13%)
2023	$3,524.00 Homeowner's exemption	$208,700 Land $56,600 Building $152,100	$208,700 Land $56,600 Building $152,100

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective February 3, 2023

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.

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.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	ONALASKA WATERWORKS serves 18,000 people · EPA ID WI6320327
Water Source	Groundwater
Last State Inspection	Dec 2023
Lead	Under 1 ppb (2023) action level 15 ppb

Violations Reported to EPA

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. The service area is an EPA estimate; the actual supplier may differ.

Internet Providers

Source: FCC Broadband Data Collection, based on 520 locations within half a mile, as of December 31, 2025

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
T-Mobile Fixed Wireless	100 / 20

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Main St

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