Mold Removal Cost And Risk In Knox County, OH

A typical professional mold job in Knox County runs about $1,300 to $5,300 before rebuild, using the Ohio nonmetro price level. Below are the 8 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and Ohio rules.

1972Median year homes were built

59%Homes built before 1980

25%Homes rented, not owned

$218,300Median home value

26,038Housing units

62,888People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Knox County were built before 1972, and 59 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 Knox County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 43005 has the oldest homes here, a median year of 1938, and ZIP 43028 the newest, 1995.

Typical Prices In Knox County

JobSizeNational RangeKnox County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,300 to $5,300
Mold Remediationan attic$2,000 to $7,500$1,750 to $6,600
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 88.3 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 $5,300, that cap falls short by about $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 Knox County.

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

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

ZIP Code Neighborhoods In Knox County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
43005Knox County1938100%Not published
43011Knox County199046%$287,300
43014Knox County197162%$198,600
43019Knox County196964%$196,300
43022Knox County197162%$281,600
43028Knox County199522%$241,300
43037Knox County196163%$264,800
43050Knox County196270%$199,000

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.

Ohio Rules On Mold

Ohio Mold And Insurance Rules

All Ohio Mold And Insurance Rules lines

All Ohio counties

Guides

Area Map

Knox County Area

Mount Vernon, OH