Mold Removal Cost And Risk In Dewey County, SD

A typical professional mold job in Dewey County runs about $1,300 to $5,200 before rebuild, using the South Dakota nonmetro price level. Below are the 7 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and South Dakota rules.

1977Median year homes were built

56%Homes built before 1980

38%Homes rented, not owned

$75,400Median home value

1,927Housing units

5,230People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Dewey County were built before 1977, and 56 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 Dewey County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 57630 has the oldest homes here, a median year of 1949, and ZIP 57625 the newest, 1983.

Typical Prices In Dewey County

JobSizeNational RangeDewey 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 Dewey County high for cold wave, winter weather. 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 floodingVery Low
Coastal floodingNot Applicable
HurricaneNot Applicable
Cold waveVery High
Winter weatherRelatively High

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

ZIP Code Neighborhoods In Dewey County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
57601Dewey County196674%$153,000
57625Dewey County198344%$72,000
57630Dewey County194963%Not published
57636Dewey County197858%$207,100
57652Dewey County197955%Not published
57656Dewey County197070%$86,800
57661Dewey County197862%Not published

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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Dewey County Area

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