Mold Removal Cost And Risk In Benton County, OR

A typical professional mold job in Benton County runs about $1,550 to $6,250 before rebuild, using the Corvallis, OR price level. Below are the 5 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Oregon rules.

1979Median year homes were built

53%Homes built before 1980

44%Homes rented, not owned

$481,700Median home value

40,565Housing units

96,359People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Benton County were built before 1979, and 53 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 44 percent of homes in Benton County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 97324 has the oldest homes here, a median year of 1966, and ZIP 97333 the newest, 1990.

Typical Prices In Benton County

JobSizeNational RangeBenton County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,550 to $6,250
Mold Remediationan attic$2,000 to $7,500$2,100 to $7,800
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 104.0 divided by 100, the price level for Corvallis, OR, 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 $6,250, that cap falls short by about $1,250 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 Benton County.

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

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

ZIP Code Neighborhoods In Benton County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
97324Benton County196672%$324,600
97330Benton County197564%$495,700
97333Benton County199042%$482,200
97370Benton County198944%$424,600
97456Benton County198149%$372,100

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.

Oregon Rules On Mold

Oregon Mold And Insurance Rules

All Oregon Mold And Insurance Rules lines

All Oregon counties

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Area Map

Benton County Area

Corvallis, OR