Mold Removal Cost And Risk In Rock County, MN

A typical professional mold job in Rock County runs about $1,350 to $5,450 before rebuild, using the Sioux Falls, SD-MN price level. Below are the 9 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Minnesota rules.

1958Median year homes were built

77%Homes built before 1980

24%Homes rented, not owned

$201,600Median home value

4,236Housing units

9,628People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $25.32 an hour, BLS May 2025 wage survey.

Half the homes in Rock County were built before 1958, and 77 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 24 percent of homes in Rock County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 56146 has the oldest homes here, a median year of 1938, and ZIP 56116 the newest, 1965.

Typical Prices In Rock County

JobSizeNational RangeRock County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,350 to $5,450
Mold Remediationan attic$2,000 to $7,500$1,800 to $6,800
Mold Inspection and Testinga visual inspection$200 to $600$200 to $550
Mold Inspection and Testingan inspection with samples$300 to $1,000$250 to $900
Mold Inspection and Testinga clearance test$300 to $800$250 to $750

Estimate is the national range times 90.6 divided by 100, the price level for Sioux Falls, SD-MN, 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 $5,450, that cap falls short by about $450 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 Rock County.

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

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

ZIP Code Neighborhoods In Rock County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
56116Rock County196571%$219,800
56134Rock County195480%$197,900
56138Rock County195870%$197,700
56144Rock County194783%$81,300
56146Rock County193875%Not published
56147Rock County194489%$119,600
56156Rock County196078%$200,900
56158Rock County196382%$108,900
56173Rock County194387%$165,600

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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Rock County Area

Sioux Falls, SD-MN