Mold Removal Cost And Risk In Walworth County, WI

A typical professional mold job in Walworth County runs about $1,350 to $5,350 before rebuild, using the Wisconsin nonmetro price level. Below are the 13 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Wisconsin rules.

1977Median year homes were built

55%Homes built before 1980

29%Homes rented, not owned

$275,900Median home value

53,508Housing units

105,447People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Walworth County were built before 1977, and 55 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 29 percent of homes in Walworth County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 53195 has the oldest homes here, a median year of 1938, and ZIP 53121 the newest, 1981.

Typical Prices In Walworth County

JobSizeNational RangeWalworth County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,350 to $5,350
Mold Remediationan attic$2,000 to $7,500$1,800 to $6,700
Mold Inspection and Testinga visual inspection$200 to $600$200 to $550
Mold Inspection and Testingan inspection with samples$300 to $1,000$250 to $900
Mold Inspection and Testinga clearance test$300 to $800$250 to $700

Estimate is the national range times 89.6 divided by 100, the price level for the nonmetro part of the state, 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 $5,350, that cap falls short by about $350 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates none of the water hazards below as high for Walworth County.

HazardFEMA Risk Rating
Inland floodingRelatively Moderate
Coastal floodingNot Applicable
HurricaneVery Low
Cold waveRelatively Moderate
Winter weatherRelatively Low

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

ZIP Code Neighborhoods In Walworth County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
53114Walworth County196859%$226,400
53115Walworth County197260%$225,900
53120Walworth County198050%$310,100
53121Walworth County198149%$287,900
53125Fontana-on-Geneva Lake197657%$576,500
53128Walworth County197951%$232,700
53147Walworth County197854%$337,000
53176SpringfieldNot published100%Not published
53184Walworth County197556%$279,300
53190Walworth County197952%$247,000
53191Williams Bay197454%$369,200
53195Walworth County1938100%$173,800
53585Walworth County195965%$206,700

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.

Wisconsin Rules On Mold

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Walworth County Area

Whitewater-Elkhorn, WI