Mold Removal Cost And Risk In Jefferson County, WA

A typical professional mold job in Jefferson County runs about $1,450 to $5,850 before rebuild, using the Washington nonmetro price level. Below are the 8 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Washington rules.

1987Median year homes were built

38%Homes built before 1980

20%Homes rented, not owned

$495,100Median home value

19,359Housing units

33,313People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Jefferson County were built before 1987, and 38 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 20 percent of homes in Jefferson County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 98331 has the oldest homes here, a median year of 1977, and ZIP 98325 the newest, 1999.

Typical Prices In Jefferson County

JobSizeNational RangeJefferson 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 $950
Mold Inspection and Testinga clearance test$300 to $800$300 to $800

Estimate is the national range times 97.4 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 $5,850, 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 Jefferson County.

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

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

ZIP Code Neighborhoods In Jefferson County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
98320Jefferson County198439%$265,500
98325Jefferson County19999%$468,000
98331Jefferson County197764%$194,700
98339Jefferson County197954%$385,500
98358Marrowstone198829%$561,400
98365Jefferson County199328%$603,500
98368Jefferson County198641%$511,900
98376Jefferson County198841%$376,400

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.

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

Jefferson County Area

Port Townsend, WA