Mold Removal Cost And Risk In Cerro Gordo County, IA

A typical professional mold job in Cerro Gordo County runs about $1,250 to $5,050 before rebuild, using the Iowa nonmetro price level. Below are the 9 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Iowa rules.

1959Median year homes were built

76%Homes built before 1980

28%Homes rented, not owned

$154,100Median home value

22,730Housing units

42,785People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Cerro Gordo County were built before 1959, and 76 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 28 percent of homes in Cerro Gordo County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 50433 has the oldest homes here, a median year of 1938, and ZIP 50428 the newest, 1973.

Typical Prices In Cerro Gordo County

JobSizeNational RangeCerro Gordo 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 Cerro Gordo County high for 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 floodingRelatively Low
Coastal floodingNot Applicable
HurricaneVery Low
Cold waveRelatively Moderate
Winter weatherRelatively High

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

ZIP Code Neighborhoods In Cerro Gordo County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
50401Cerro Gordo County195579%$134,100
50428Cerro Gordo County197365%$253,900
50433Cerro Gordo County193882%$55,000
50464Cerro Gordo County195279%$167,000
50467Cerro Gordo County195098%$160,400
50469Cerro Gordo County195680%$188,900
50477Cerro Gordo County194588%$75,000
50479Cerro Gordo County195087%$112,200
50482Cerro Gordo County195580%$220,800

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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Cerro Gordo County Area

Mason City, IA