Mold Removal Cost And Risk In Custer County, SD

A typical professional mold job in Custer County runs about $1,350 to $5,350 before rebuild, using the Rapid City, SD price level. Below are the 4 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and South Dakota rules.

1990Median year homes were built

40%Homes built before 1980

14%Homes rented, not owned

$327,200Median home value

5,126Housing units

8,686People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Custer County were built before 1990, and 40 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 14 percent of homes in Custer County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 57730 has the oldest homes here, a median year of 1978, and ZIP 57738 the newest, 2006.

Typical Prices In Custer County

JobSizeNational RangeCuster County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,350 to $5,350
Mold Remediationan attic$2,000 to $7,500$1,800 to $6,700
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 $700

Estimate is the national range times 89.2 divided by 100, the price level for Rapid City, SD, 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 $5,350, that cap falls short by about $350 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 Custer County.

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

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

ZIP Code Neighborhoods In Custer County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
57730Custer County197852%$324,300
57738Custer County20069%$486,400
57744Custer County199833%$350,800
57773Custer County198436%$9,999

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.

South Dakota Rules On Mold

South Dakota Mold And Insurance Rules

All South Dakota Mold And Insurance Rules lines

All South Dakota counties

Guides

Area Map

Custer County Area

Rapid City, SD