Mold Removal Cost And Risk In Adams County, WA

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

1976Median year homes were built

58%Homes built before 1980

31%Homes rented, not owned

$251,300Median home value

6,844Housing units

20,690People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Adams County were built before 1976, 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 31 percent of homes in Adams County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 99105 has the oldest homes here, a median year of 1938, and ZIP 99344 the newest, 1983.

Typical Prices In Adams County

JobSizeNational RangeAdams 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 Adams County.

HazardFEMA Risk Rating
Inland floodingVery Low
Coastal floodingNot Applicable
HurricaneNot Applicable
Cold waveRelatively Low
Winter weatherVery Low

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

ZIP Code Neighborhoods In Adams County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
99105Adams County193895%Not published
99169Adams County195574%$210,700
99341Adams County195082%$245,300
99344Adams County198348%$256,700
99371Adams County194577%$187,500

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

Adams County Area

Othello, WA