Mold Removal Cost And Risk In Jefferson County, IL

A typical professional mold job in Jefferson County runs about $1,300 to $5,250 before rebuild, using the Illinois nonmetro price level. Below are the 12 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Illinois rules.

1977Median year homes were built

55%Homes built before 1980

28%Homes rented, not owned

$118,400Median home value

16,650Housing units

36,808People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Jefferson County were built before 1977, and 55 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 Jefferson County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 62810 has the oldest homes here, a median year of 1973, and ZIP 62889 the newest, 1994.

Typical Prices In Jefferson County

JobSizeNational RangeJefferson 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 87.4 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 Jefferson 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
HurricaneVery Low
Cold waveRelatively Low
Winter weatherRelatively High

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

ZIP Code Neighborhoods In Jefferson County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
62810Jefferson County197358%$109,400
62814Jefferson County198545%$108,100
62816Jefferson County197857%$86,300
62830Jefferson County198639%$137,300
62846Jefferson County198149%$89,300
62864Jefferson County197462%$117,600
62872Jefferson County198736%$107,600
62883Jefferson County198148%$143,800
62889Jefferson County199421%$147,500
62893Jefferson County199138%$138,100
62894Jefferson County197952%$106,900
62898Jefferson County198933%$150,000

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.

Illinois Rules On Mold

Illinois Mold And Insurance Rules

All Illinois Mold And Insurance Rules lines

Illinois Department of Insurance

All Illinois Department of Insurance lines

All Illinois counties

Guides

Area Map

Jefferson County Area

Mount Vernon, IL