Mold Removal Cost And Risk In Buchanan County, MO

A typical professional mold job in Buchanan County runs about $1,300 to $5,200 before rebuild, using the St. Joseph, MO-KS price level. Below are the 10 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Missouri rules.

1964Median year homes were built

71%Homes built before 1980

35%Homes rented, not owned

$156,600Median home value

38,415Housing units

83,855People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Buchanan County were built before 1964, and 71 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 35 percent of homes in Buchanan County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 64501 has the oldest homes here, a median year of 1938, and ZIP 64401 the newest, 1988.

Typical Prices In Buchanan County

JobSizeNational RangeBuchanan 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 Buchanan County.

HazardFEMA Risk Rating
Inland floodingRelatively Low
Coastal floodingNot Applicable
HurricaneNo Rating
Cold waveRelatively Moderate
Winter weatherRelatively Moderate

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

ZIP Code Neighborhoods In Buchanan County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
64401Buchanan County198836%$241,500
64440Buchanan County197357%$191,800
64443Buchanan County198447%$315,800
64448Buchanan County197258%$198,700
64484Buchanan County197460%$123,600
64501St. Joseph193888%$97,400
64503St. Joseph196774%$133,500
64504Buchanan County195678%$115,100
64506St. Joseph197659%$220,500
64507Buchanan County195777%$134,000

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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Buchanan County Area

St. Joseph, MO-KS