Mold Removal Cost And Risk In Clay County, IA

A typical professional mold job in Clay County runs about $1,250 to $5,050 before rebuild, using the Iowa nonmetro price level. Below are the 10 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Iowa rules.

1966Median year homes were built

71%Homes built before 1980

27%Homes rented, not owned

$171,500Median home value

8,141Housing units

16,446People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Clay 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 27 percent of homes in Clay County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 51047 has the oldest homes here, a median year of 1938, and ZIP 51333 the newest, 1972.

Typical Prices In Clay County

JobSizeNational RangeClay County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,250 to $5,050
Mold Remediationan attic$2,000 to $7,500$1,700 to $6,300
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 $650

Estimate is the national range times 84.1 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 $5,050, that cap falls short by about $50 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 Clay County.

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

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

ZIP Code Neighborhoods In Clay County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
51033Clay County195290%$185,000
51047Clay County193881%$130,500
51301Clay County197067%$180,400
51333Clay County197275%$181,600
51338Clay County195185%$120,400
51340Fostoria194998%$116,700
51341Gillett Grove1945100%$62,500
51343Clay County194282%$111,500
51357Clay County193890%$121,300
51366Clay County194577%$119,400

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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Clay County Area

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