Mold Removal Cost And Risk In Thurston County, WA

A typical professional mold job in Thurston County runs about $1,550 to $6,200 before rebuild, using the Olympia-Lacey-Tumwater, WA price level. Below are the 12 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Washington rules.

1991Median year homes were built

35%Homes built before 1980

32%Homes rented, not owned

$451,500Median home value

123,333Housing units

296,640People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $23.30 an hour, BLS May 2025 wage survey.

Half the homes in Thurston County were built before 1991, and 35 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 32 percent of homes in Thurston County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 98530 has the oldest homes here, a median year of 1973, and ZIP 98516 the newest, 2002.

Typical Prices In Thurston County

JobSizeNational RangeThurston County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,550 to $6,200
Mold Remediationan attic$2,000 to $7,500$2,050 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 103.7 divided by 100, the price level for Olympia-Lacey-Tumwater, 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 $6,200, that cap falls short by about $1,200 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 Thurston County.

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

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

ZIP Code Neighborhoods In Thurston County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
98501Thurston County198643%$485,200
98502Thurston County198739%$496,500
98503Lacey198542%$407,700
98506Thurston County197755%$469,700
98512Thurston County199133%$438,800
98513Thurston County199522%$443,300
98516Thurston County200220%$528,000
98530Thurston County197362%$219,000
98576Thurston County199332%$400,000
98579Thurston County199425%$405,500
98589Thurston County199330%$408,600
98597Thurston County199820%$423,200

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.

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Thurston County Area

Olympia-Lacey-Tumwater, WA