Southport, NC Radon Mitigation and Testing

Q: What EPA Radon Zone is Southport in?

Southport is in Brunswick County, EPA Zone 3.

Q: How much does radon mitigation cost in Southport?

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

Brunswick County

EPA Zone 3

This historic coastal town in Brunswick County sits on marine sediments and sandy soils typical of North Carolina's Cape Fear region. With testing data for zip code 28461 still being collected, homeowners should consider radon testing despite the coastal location's typically lower geological radon potential.

Southport, NC Radon Mitigation

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

Southport, NC Radon Testing

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

Southport Radon Facts

Key details about the radon risk profile for Southport and the 28461 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Brunswick County, NC

Zip Code

28461

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Southport and the 28461 zip code are located in Brunswick 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 Southport, NC

What EPA Radon Zone is Southport in?

Southport and the 28461 zip code are in Brunswick 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 Southport?

Radon mitigation in Southport 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 Southport?

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