Mold Removal Cost And Risk In Marion County, MO

A typical professional mold job in Marion County runs about $1,250 to $5,050 before rebuild, using the Missouri nonmetro price level. Below are the 6 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Missouri rules.

1970Median year homes were built

64%Homes built before 1980

30%Homes rented, not owned

$158,100Median home value

12,886Housing units

28,493People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Marion County were built before 1970, and 64 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 30 percent of homes in Marion County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 63471 has the oldest homes here, a median year of 1962, and ZIP 63454 the newest, 1979.

Typical Prices In Marion County

JobSizeNational RangeMarion 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 83.9 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 Marion County.

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

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

ZIP Code Neighborhoods In Marion County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
63401Marion County197064%$144,400
63454Marion County197952%$186,300
63456Marion County197951%$151,300
63461Marion County197062%$176,500
63463Marion County197952%$129,700
63471Marion County196276%$244,200

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

Marion County Area

Hannibal, MO