Mold Removal Cost And Risk In Mariposa County, CA

A typical professional mold job in Mariposa County runs about $1,500 to $6,000 before rebuild, using the California nonmetro price level. Below are the 7 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and California rules.

1986Median year homes were built

38%Homes built before 1980

25%Homes rented, not owned

$358,000Median home value

9,796Housing units

17,060People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Mariposa County were built before 1986, and 38 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 25 percent of homes in Mariposa County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 93623 has the oldest homes here, a median year of 1954, and ZIP 95338 the newest, 1987.

Typical Prices In Mariposa County

JobSizeNational RangeMariposa County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,500 to $6,000
Mold Remediationan attic$2,000 to $7,500$2,000 to $7,500
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 $1,000
Mold Inspection and Testinga clearance test$300 to $800$300 to $800

Estimate is the national range times 100.0 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 $6,000, that cap falls short by about $1,000 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 Mariposa County.

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

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

ZIP Code Neighborhoods In Mariposa County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
93623Mariposa County1954100%Not published
95306Mariposa County198622%Not published
95311Mariposa County198342%$295,700
95318Mariposa County196575%$298,100
95338Mariposa County198735%$367,000
95345Mariposa County197952%$415,700
95389Mariposa County197657%$912,500

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.

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