Mold Removal Cost And Risk In Plymouth County, IA

A typical professional mold job in Plymouth County runs about $1,250 to $5,050 before rebuild, using the Iowa nonmetro price level. Below are the 11 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Iowa rules.

1972Median year homes were built

63%Homes built before 1980

26%Homes rented, not owned

$218,600Median home value

10,863Housing units

25,699People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Plymouth County were built before 1972, and 63 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 Plymouth County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 51062 has the oldest homes here, a median year of 1938, and ZIP 51024 the newest, 1984.

Typical Prices In Plymouth County

JobSizeNational RangePlymouth 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 Plymouth 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 Plymouth County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
51001Plymouth County196271%$177,700
51008Brunsville197755%$136,300
51024Plymouth County198447%$317,100
51028Plymouth County195874%$195,000
51031Plymouth County197362%$208,900
51038Plymouth County195373%$181,800
51045Oyens1960100%$155,000
51050Plymouth County195776%$219,100
51062Plymouth County193864%$284,200
51108Plymouth County196564%$166,600
51109Plymouth County196079%$120,400

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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Plymouth County Area

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