Mold Removal Cost And Risk In Lyon County, IA

A typical professional mold job in Lyon County runs about $1,250 to $5,050 before rebuild, using the Iowa nonmetro price level. Below are the 8 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Iowa rules.

1965Median year homes were built

68%Homes built before 1980

17%Homes rented, not owned

$215,600Median home value

4,857Housing units

12,087People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Lyon County were built before 1965, and 68 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 17 percent of homes in Lyon County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 51230 has the oldest homes here, a median year of 1938, and ZIP 51241 the newest, 1977.

Typical Prices In Lyon County

JobSizeNational RangeLyon 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 Lyon County.

HazardFEMA Risk Rating
Inland floodingVery 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 Lyon County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
51230Lyon County193891%$189,800
51235Lyon County197457%$250,600
51237Lyon County195373%$131,400
51240Lyon County197361%$193,600
51241Lyon County197752%$270,100
51242Lyon County197366%$185,200
51243Lyon County195675%$88,100
51246Lyon County196875%$232,900

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.

Iowa Rules On Mold

Iowa Mold And Insurance Rules

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Area Map

Lyon County Area

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