Mold Removal Cost And Risk In Lake County, IN

A typical professional mold job in Lake County runs about $1,550 to $6,200 before rebuild, using the Chicago-Naperville-Elgin, IL-IN price level. Below are the 27 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Indiana rules.

1968Median year homes were built

67%Homes built before 1980

29%Homes rented, not owned

$214,700Median home value

216,330Housing units

498,990People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $29.49 an hour, BLS May 2025 wage survey.

Half the homes in Lake County were built before 1968, and 67 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 29 percent of homes in Lake County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 46394 has the oldest homes here, a median year of 1938, and ZIP 46373 the newest, 2000.

Typical Prices In Lake County

JobSizeNational RangeLake County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,550 to $6,200
Mold Remediationan attic$2,000 to $7,500$2,050 to $7,750
Mold Inspection and Testinga visual inspection$200 to $600$200 to $600
Mold Inspection and Testingan inspection with samples$300 to $1,000$300 to $1,050
Mold Inspection and Testinga clearance test$300 to $800$300 to $850

Estimate is the national range times 103.6 divided by 100, the price level for Chicago-Naperville-Elgin, IL-IN, 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 $6,200, that cap falls short by about $1,200 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Lake County high for inland flooding, cold wave, 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 High
Coastal floodingVery Low
HurricaneVery Low
Cold waveVery High
Winter weatherRelatively High

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

ZIP Code Neighborhoods In Lake County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
46303Lake County199241%$271,700
46307Lake County198842%$293,500
46311Dyer199435%$300,000
46312East Chicago194290%$92,400
46319Griffith196673%$194,300
46320Hammond194380%$115,300
46321Munster197269%$312,000
46322Highland196672%$219,500
46323Hammond195991%$149,200
46324Hammond195291%$141,600
46327Hammond194895%$116,900
46342Hobart197266%$193,400
46356Lake County198845%$256,300
46373St. John200025%$375,300
46375Schererville198835%$295,400
46376Lake County195584%$169,300
46377ShelbyNot published100%Not published
46394Hammond193895%$162,900
46402Gary194284%$61,200
46403Gary196282%$154,800
46404Gary196090%$88,300
46405Lake Station195979%$123,600
46406Gary196391%$86,300
46407Gary195587%$55,000
46408Gary195491%$96,200
46409Gary195595%$73,300
46410Merrillville197853%$192,100

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.

Cities And Towns

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Lake County Area

Chicago-Naperville-Elgin, IL-IN