Mold Removal Cost And Risk In Onslow County, NC

A typical professional mold job in Onslow County runs about $1,400 to $5,550 before rebuild, using the Jacksonville, NC price level. Below are the 13 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and North Carolina rules.

1997Median year homes were built

26%Homes built before 1980

39%Homes rented, not owned

$219,500Median home value

85,917Housing units

208,537People

Housing figures from Census ACS 2019 to 2023.

Half the homes in Onslow County were built before 1997, and 26 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 39 percent of homes in Onslow County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 28547 has the oldest homes here, a median year of 1984, and ZIP 28542 the newest, 2014.

Typical Prices In Onslow County

JobSizeNational RangeOnslow County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,400 to $5,550
Mold Remediationan attic$2,000 to $7,500$1,850 to $6,900
Mold Inspection and Testinga visual inspection$200 to $600$200 to $550
Mold Inspection and Testingan inspection with samples$300 to $1,000$300 to $900
Mold Inspection and Testinga clearance test$300 to $800$300 to $750

Estimate is the national range times 92.1 divided by 100, the price level for Jacksonville, NC, 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 $5,550, that cap falls short by about $550 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Onslow County high for hurricane, winter weather. Water from these events is where mold claims start, and flood water is a separate policy. FloodSmart says mold damage is not covered under standard NFIP flood policies. FloodSmart

HazardFEMA Risk Rating
Inland floodingRelatively Moderate
Coastal floodingRelatively Moderate
HurricaneVery High
Cold waveRelatively Low
Winter weatherVery High

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

ZIP Code Neighborhoods In Onslow County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
28445Onslow County200118%$332,500
28454Onslow County200016%$193,400
28460Onslow County200213%$310,000
28539Onslow County199916%$207,200
28540Onslow County198544%$201,700
28542Jacksonville20140%Not published
28543Jacksonville200611%Not published
28544Onslow County199117%$136,700
28546Onslow County199723%$212,200
28547Onslow County198447%Not published
28555Onslow County199040%$147,000
28574Onslow County200120%$204,500
28582Onslow County199626%$310,700

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.

Cities And Towns

North Carolina Rules On Mold

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Area Map

Onslow County Area

Jacksonville, NC