Mold Removal Cost And Risk In Washington County, MN

A typical professional mold job in Washington County runs about $1,550 to $6,300 before rebuild, using the Minneapolis-St. Paul-Bloomington, MN-WI price level. Below are the 16 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Minnesota rules.

1992Median year homes were built

32%Homes built before 1980

19%Homes rented, not owned

$400,900Median home value

107,035Housing units

272,298People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $28.44 an hour, BLS May 2025 wage survey.

Half the homes in Washington County were built before 1992, and 32 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 19 percent of homes in Washington County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 55090 has the oldest homes here, a median year of 1948, and ZIP 55129 the newest, 2007.

Typical Prices In Washington County

JobSizeNational RangeWashington County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,550 to $6,300
Mold Remediationan attic$2,000 to $7,500$2,100 to $7,850
Mold Inspection and Testinga visual inspection$200 to $600$200 to $650
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 104.8 divided by 100, the price level for Minneapolis-St. Paul-Bloomington, MN-WI, 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 $6,300, that cap falls short by about $1,300 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 Washington County.

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

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

ZIP Code Neighborhoods In Washington County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
55001Afton197654%$654,000
55003Bayport196061%$363,200
55016Cottage Grove198839%$358,800
55038Hugo200116%$408,000
55042Lake Elmo200126%$594,000
55043Lakeland197464%$360,600
55047Washington County197559%$478,800
55055Newport197562%$331,300
55071St. Paul Park196956%$256,200
55073Scandia198347%$470,400
55082Washington County198542%$459,500
55090Willernie194882%$305,200
55115Mahtomedi198836%$481,900
55125Woodbury199219%$396,600
55128Oakdale198735%$300,700
55129Woodbury20076%$517,800

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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Washington County Area

Minneapolis-St. Paul-Bloomington, MN-WI