Mold Removal Cost And Risk In Johnson County, MO

A typical professional mold job in Johnson County runs about $1,250 to $5,050 before rebuild, using the Missouri nonmetro price level. Below are the 8 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Missouri rules.

1991Median year homes were built

37%Homes built before 1980

36%Homes rented, not owned

$221,400Median home value

22,663Housing units

54,331People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Johnson County were built before 1991, and 37 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 36 percent of homes in Johnson County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 64733 has the oldest homes here, a median year of 1975, and ZIP 65305 the newest, 2004.

Typical Prices In Johnson County

JobSizeNational RangeJohnson 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 Johnson County.

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

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

ZIP Code Neighborhoods In Johnson County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
64019Johnson County199430%$219,200
64040Johnson County198446%$220,200
64061Johnson County199621%$240,100
64093Johnson County198940%$227,500
64733Johnson County197557%$197,300
64761Johnson County198148%$123,900
65305Whiteman AFB200413%Not published
65336Johnson County199532%$195,400

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.

Missouri Rules On Mold

Missouri Mold And Insurance Rules

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Area Map

Johnson County Area

Warrensburg, MO