Mold Removal Cost And Risk In Big Horn County, WY

A typical professional mold job in Big Horn County runs about $1,350 to $5,500 before rebuild, using the Wyoming nonmetro price level. Below are the 13 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Wyoming rules.

1967Median year homes were built

68%Homes built before 1980

23%Homes rented, not owned

$198,200Median home value

5,370Housing units

11,737People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Big Horn County were built before 1967, and 68 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 23 percent of homes in Big Horn County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 82428 has the oldest homes here, a median year of 1944, and ZIP 82421 the newest, 1987.

Typical Prices In Big Horn County

JobSizeNational RangeBig Horn County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,350 to $5,500
Mold Remediationan attic$2,000 to $7,500$1,850 to $6,850
Mold Inspection and Testinga visual inspection$200 to $600$200 to $550
Mold Inspection and Testingan inspection with samples$300 to $1,000$250 to $900
Mold Inspection and Testinga clearance test$300 to $800$250 to $750

Estimate is the national range times 91.6 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 $5,500, that cap falls short by about $500 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 Big Horn County.

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

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

ZIP Code Neighborhoods In Big Horn County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
82410Big Horn County196472%$185,100
82411Big Horn County197561%$172,500
82412Big Horn County196970%$163,600
82420Big Horn County198150%$229,400
82421Big Horn County198740%$156,000
82422Big Horn CountyNot published100%Not published
82423Big Horn County195867%$114,100
82426Big Horn County196566%$189,900
82428Big Horn County194482%$92,900
82431Big Horn County196176%$216,500
82432Big Horn County197458%Not published
82434Big Horn County1963100%Not published
82441Big Horn County198345%$381,400

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.

Wyoming Rules On Mold

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Big Horn County Area

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