Swansboro, NC Radon Mitigation and Testing

Q: What EPA Radon Zone is Swansboro in?

Swansboro is in Onslow County, EPA Zone 3.

Q: How much does radon mitigation cost in Swansboro?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Onslow County

EPA Zone 3

Situated in Onslow County within the Jacksonville Metro area, Swansboro lies along North Carolina's Crystal Coast on sandy coastal plain deposits. The historic waterfront town features homes adapted to coastal living, typically with elevated or slab foundations to accommodate flood zones. Radon testing information for zip code 28584 is currently limited, though coastal geology typically presents lower radon risk that individual testing can confirm.

Swansboro, NC Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Swansboro, NC Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Swansboro Radon Facts

Key details about the radon risk profile for Swansboro and the 28584 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Onslow County, NC

Zip Code

28584

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Swansboro and the 28584 zip code are located in Onslow County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Swansboro, NC

What EPA Radon Zone is Swansboro in?

Swansboro and the 28584 zip code are in Onslow County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Swansboro?

Radon mitigation in Swansboro typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.

Should I test for radon if I'm buying a home in Swansboro?

Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.

Most Active Radon Markets in North Carolina

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Murphy	12.83 pCi/L	6
Blowing Rock	10.17 pCi/L	6
Brevard	7.50 pCi/L	4
Cary	5.00 pCi/L	4
Highlands	4.50 pCi/L	4
Mooresville	4.00 pCi/L	4
Banner Elk	9.33 pCi/L	3
Charlotte	7.33 pCi/L	3
Denver	4.33 pCi/L	3
Hendersonville	9.00 pCi/L	2
Wake Forest	4.50 pCi/L	2
Apex	3.50 pCi/L	2
Huntersville	3.50 pCi/L	2
Raleigh	9.00 pCi/L	1
Fayetteville	5.00 pCi/L	1
Waxhaw	4.00 pCi/L	1
Chapel Hill	3.00 pCi/L	1
Clayton	No submissions	0
Fuquay Varina	No submissions	0
Holly Springs	No submissions	0