Mold Removal Cost And Risk In Yellowstone County, MT

A typical professional mold job in Yellowstone County runs about $1,400 to $5,600 before rebuild, using the Billings, MT price level. Below are the 12 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Montana rules.

1982Median year homes were built

48%Homes built before 1980

31%Homes rented, not owned

$317,600Median home value

73,363Housing units

167,340People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $27.26 an hour, BLS May 2025 wage survey.

Half the homes in Yellowstone County were built before 1982, and 48 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 31 percent of homes in Yellowstone County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 59024 has the oldest homes here, a median year of 1960, and ZIP 59106 the newest, 2007.

Typical Prices In Yellowstone County

JobSizeNational RangeYellowstone County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,400 to $5,600
Mold Remediationan attic$2,000 to $7,500$1,850 to $7,000
Mold Inspection and Testinga visual inspection$200 to $600$200 to $550
Mold Inspection and Testingan inspection with samples$300 to $1,000$300 to $950
Mold Inspection and Testinga clearance test$300 to $800$300 to $750

Estimate is the national range times 93.5 divided by 100, the price level for Billings, MT, 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 $5,600, that cap falls short by about $600 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Yellowstone County high for 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 Moderate
Coastal floodingNot Applicable
HurricaneNot Applicable
Cold waveRelatively High
Winter weatherVery High

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

ZIP Code Neighborhoods In Yellowstone County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
59002Yellowstone County199241%$430,000
59006Yellowstone County198940%$240,800
59015Yellowstone County198347%$228,800
59024Yellowstone County196061%$190,600
59037Yellowstone County200326%$326,100
59044Yellowstone County197951%$317,200
59079Yellowstone County198929%$350,400
59088Yellowstone County198939%$226,000
59101Yellowstone County197263%$243,000
59102Billings197560%$307,400
59105Yellowstone County199034%$314,900
59106Yellowstone County200713%$483,100

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.

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Billings, MT