Mold Removal Cost And Risk In Washington County, ID

A typical professional mold job in Washington County runs about $1,400 to $5,500 before rebuild, using the Idaho nonmetro price level. Below are the 3 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Idaho rules.

1974Median year homes were built

59%Homes built before 1980

27%Homes rented, not owned

$250,300Median home value

4,586Housing units

10,866People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Washington County were built before 1974, and 59 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 27 percent of homes in Washington County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 83672 has the oldest homes here, a median year of 1974, and ZIP 83645 the newest, 1976.

Typical Prices In Washington County

JobSizeNational RangeWashington County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,400 to $5,500
Mold Remediationan attic$2,000 to $7,500$1,850 to $6,900
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 $900
Mold Inspection and Testinga clearance test$300 to $800$300 to $750

Estimate is the national range times 91.9 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 $5,500, 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 Washington County.

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

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

ZIP Code Neighborhoods In Washington County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
83610Washington County197556%$261,700
83645Washington County197659%$296,500
83672Washington County197459%$244,300

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.

Idaho Rules On Mold

Idaho Mold And Insurance Rules

All Idaho Mold And Insurance Rules lines

All Idaho counties

Guides

Area Map

Washington County Area

Idaho