Mold Removal Cost And Risk In Walworth County, SD

A typical professional mold job in Walworth County runs about $1,300 to $5,200 before rebuild, using the South Dakota nonmetro price level. Below are the 4 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and South Dakota rules.

1966Median year homes were built

71%Homes built before 1980

26%Homes rented, not owned

$130,000Median home value

2,941Housing units

5,298People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Walworth County were built before 1966, and 71 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 26 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 57452 has the oldest homes here, a median year of 1954, and ZIP 57420 the newest, 1992.

Typical Prices In Walworth County

JobSizeNational RangeWalworth County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,300 to $5,200
Mold Remediationan attic$2,000 to $7,500$1,750 to $6,500
Mold Inspection and Testinga visual inspection$200 to $600$150 to $500
Mold Inspection and Testingan inspection with samples$300 to $1,000$250 to $850
Mold Inspection and Testinga clearance test$300 to $800$250 to $700

Estimate is the national range times 86.7 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 $5,200, that cap falls short by about $200 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 floodingVery Low
Coastal floodingNot Applicable
HurricaneNot Applicable
Cold waveRelatively Moderate
Winter weatherRelatively Moderate

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

ZIP Code Neighborhoods In Walworth County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
57420Walworth County199232%$79,800
57452Walworth County195475%$70,000
57472Walworth County196478%$118,900
57631Walworth County197654%$106,700

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.

South Dakota Rules On Mold

South Dakota Mold And Insurance Rules

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Walworth County Area

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