Mold Removal Cost And Risk In DeKalb County, MO

A typical professional mold job in DeKalb County runs about $1,300 to $5,200 before rebuild, using the St. Joseph, MO-KS price level. Below are the 6 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Missouri rules.

1982Median year homes were built

48%Homes built before 1980

28%Homes rented, not owned

$167,500Median home value

4,277Housing units

11,176People

Housing figures from Census ACS 2019 to 2023.

Half the homes in DeKalb County were built before 1982, and 48 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 DeKalb County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 64422 has the oldest homes here, a median year of 1961, and ZIP 64497 the newest, 2004.

Typical Prices In DeKalb County

JobSizeNational RangeDeKalb County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,300 to $5,200
Mold Remediationan attic$2,000 to $7,500$1,750 to $6,500
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 86.4 divided by 100, the price level for St. Joseph, MO-KS, 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 $5,200, that cap falls short by about $200 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 DeKalb County.

HazardFEMA Risk Rating
Inland floodingVery Low
Coastal floodingNot Applicable
HurricaneNo Rating
Cold waveRelatively Low
Winter weatherVery Low

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

ZIP Code Neighborhoods In DeKalb County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
64422DeKalb County196172%Not published
64429DeKalb County198547%$186,300
64430DeKalb County197369%$227,700
64469DeKalb County198149%$147,600
64474DeKalb County197062%$133,700
64497DeKalb County200426%$340,800

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.

Missouri Rules On Mold

Missouri Mold And Insurance Rules

All Missouri Mold And Insurance Rules lines

All Missouri counties

Guides

Area Map

DeKalb County Area

St. Joseph, MO-KS