Delco, NC Radon Levels

Q: What EPA Radon Zone is Delco in?

Delco is in Columbus County, EPA Zone 3.

Q: What EPA radon zones surround Delco, NC?

Delco sits in Columbus County, which the EPA classifies as Radon Zone 3. Among the nearby communities listed above, 8 in Zone 3 (low risk, under 2 pCi/L). EPA radon zones are county-level predictions of radon potential, so the EPA recommends testing every individual home regardless of its zone, since levels vary from house to house.

Q: How much does radon mitigation cost in Delco?

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

Check local Delco radon levels and find certified testing and mitigation professionals to keep your home safe

Delco, NC Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Columbus County, NC

Zip Code 28436

Located in Columbus County within the Wilmington Metro area, Delco sits in North Carolina's coastal plain where sandy soils typically produce lower radon levels. Testing data remains limited for zip code 28436, though the area's EPA Zone 3 classification suggests reduced radon risk compared to inland regions. Homeowners should still consider testing, particularly in homes with crawl spaces or basements that could concentrate radon from underlying soils.

Delco, NC Radon Mitigation

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

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EPA Radon Zones Near Delco, NC

No user-submitted radon readings are available for Delco or its immediate area yet. The table below shows the EPA radon zone — a county-level prediction of radon risk — for nearby communities. Radon still varies from home to home, so testing is the only way to confirm your level.

City	Distance	County	EPA Radon Zone
Currie	14.9 mi	Pender County	Zone 3
Atkinson	17.9 mi	Pender County	Zone 3
Supply	18.1 mi	Brunswick County	Zone 3
Bolivia	18.6 mi	Brunswick County	Zone 3
Castle Hayne	20.2 mi	New Hanover County	Zone 3
Ash	20.6 mi	Brunswick County	Zone 3
Rocky Point	21.9 mi	Pender County	Zone 3
Wilmington	22.1 mi	New Hanover County	Zone 3

Columbus County Radon Profile

The EPA maps Columbus County as Radon Zone 3, the lowest predicted classification, with modeled indoor screening levels under 2 pCi/L. Direct test data for Columbus County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Columbus County home regardless of zone or a neighbor's results.

Radon FAQ for Delco, NC

What EPA Radon Zone is Delco in?

Delco and the 28436 zip code are in Columbus 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.

What EPA radon zones surround Delco, NC?

Delco sits in Columbus County, which the EPA classifies as Radon Zone 3. Among the nearby communities listed above, 8 in Zone 3 (low risk, under 2 pCi/L). EPA radon zones are county-level predictions of radon potential, so the EPA recommends testing every individual home regardless of its zone, since levels vary from house to house.

How much does radon mitigation cost in Delco?

Radon mitigation in Delco 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 Delco?

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.