Mold Removal Cost And Risk In Cowlitz County, WA

A typical professional mold job in Cowlitz County runs about $1,450 to $5,850 before rebuild, using the Longview-Kelso, WA price level. Below are the 9 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Washington rules.

1975Median year homes were built

58%Homes built before 1980

34%Homes rented, not owned

$367,400Median home value

45,884Housing units

111,539People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Cowlitz County were built before 1975, and 58 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 34 percent of homes in Cowlitz County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 98581 has the oldest homes here, a median year of 1944, and ZIP 98603 the newest, 1998.

Typical Prices In Cowlitz County

JobSizeNational RangeCowlitz County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,450 to $5,850
Mold Remediationan attic$2,000 to $7,500$1,950 to $7,300
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 $1,000
Mold Inspection and Testinga clearance test$300 to $800$300 to $800

Estimate is the national range times 97.5 divided by 100, the price level for Longview-Kelso, WA, 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 $5,850, that cap falls short by about $850 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 Cowlitz County.

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

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

ZIP Code Neighborhoods In Cowlitz County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
98581Cowlitz County194461%$200,000
98603Cowlitz County199813%$368,800
98611Cowlitz County198348%$382,000
98625Cowlitz County199532%$442,000
98626Cowlitz County197360%$339,800
98632Cowlitz County196970%$355,200
98645Cowlitz County199139%$467,000
98649Cowlitz County199144%$286,600
98674Cowlitz County199336%$481,100

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.

Washington Rules On Mold

Washington Mold And Insurance Rules

All Washington Mold And Insurance Rules lines

Washington Office of the Insurance Commissioner

All Washington Office of the Insurance Commissioner lines

All Washington counties

Guides

Area Map

Cowlitz County Area

Longview-Kelso, WA