Mold Removal Cost And Risk In Walsh County, ND

A typical professional mold job in Walsh County runs about $1,300 to $5,250 before rebuild, using the North Dakota nonmetro price level. Below are the 11 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and North Dakota rules.

1971Median year homes were built

73%Homes built before 1980

22%Homes rented, not owned

$125,700Median home value

5,207Housing units

10,488People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Walsh County were built before 1971, and 73 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 22 percent of homes in Walsh County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 58229 has the oldest homes here, a median year of 1938, and ZIP 58261 the newest, 1975.

Typical Prices In Walsh County

JobSizeNational RangeWalsh County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,300 to $5,250
Mold Remediationan attic$2,000 to $7,500$1,750 to $6,550
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 87.3 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 $5,250, that cap falls short by about $250 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Walsh 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
HurricaneNot Applicable
Cold waveRelatively Moderate
Winter weatherRelatively High

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

ZIP Code Neighborhoods In Walsh County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
58210Walsh County196979%$89,100
58227Walsh County195775%$107,500
58229Walsh County193879%$106,900
58231Walsh County196573%$92,300
58233Walsh County196863%$159,700
58237Walsh County197274%$154,900
58243Walsh County196376%$120,200
58250Walsh County193879%$82,500
58261Walsh County197558%$118,900
58270Walsh County197273%$145,500
58273Walsh County196684%$78,300

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.

North Dakota Rules On Mold

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Walsh County Area

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