Mold Removal Cost And Risk In La Crosse County, WI

A typical professional mold job in La Crosse County runs about $1,400 to $5,500 before rebuild, using the La Crosse-Onalaska, WI-MN price level. Below are the 9 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Wisconsin rules.

1978Median year homes were built

54%Homes built before 1980

38%Homes rented, not owned

$243,200Median home value

53,234Housing units

120,262People

Housing figures from Census ACS 2019 to 2023.

Half the homes in La Crosse County were built before 1978, and 54 percent went up before 1980. Older plumbing, roofs and window seals are where slow leaks start, and slow leaks are the mold most home policies leave out. About 38 percent of homes in La Crosse County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 54603 has the oldest homes here, a median year of 1965, and ZIP 54636 the newest, 1996.

Typical Prices In La Crosse County

JobSizeNational RangeLa Crosse County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,400 to $5,500
Mold Remediationan attic$2,000 to $7,500$1,850 to $6,900
Mold Inspection and Testinga visual inspection$200 to $600$200 to $550
Mold Inspection and Testingan inspection with samples$300 to $1,000$300 to $900
Mold Inspection and Testinga clearance test$300 to $800$300 to $750

Estimate is the national range times 91.8 divided by 100, the price level for La Crosse-Onalaska, WI-MN, rounded to $50. National ranges from Remediational cost guide, price level from BEA Regional Price Parities 2024.

The standard limited fungi endorsement caps mold at $5,000. Against a typical job here of up to $5,500, that cap falls short by about $500 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates La Crosse County high for cold wave. Water from these events is where mold claims start, and flood water is a separate policy. FloodSmart says mold damage is not covered under standard NFIP flood policies. FloodSmart

HazardFEMA Risk Rating
Inland floodingRelatively Moderate
Coastal floodingNot Applicable
HurricaneNo Rating
Cold waveRelatively High
Winter weatherRelatively Moderate

Source FEMA National Risk Index, December 2025, county level.

ZIP Code Neighborhoods In La Crosse County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
54601La Crosse County197064%$220,200
54603La Crosse196570%$175,500
54614La Crosse County197754%$238,200
54623La Crosse County197558%$248,600
54636La Crosse County199626%$290,600
54644La Crosse County198446%$263,300
54650La Crosse County198842%$279,100
54653La Crosse County197853%$253,500
54669La Crosse County199042%$288,600

ZIP areas are Census ZIP Code Tabulation Areas, placed in the county that holds most of their land, per the Census 2020 ZIP relationship files.

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La Crosse County Area

La Crosse-Onalaska, WI-MN