Richlands, NC Radon Levels

Q: What EPA Radon Zone is Richlands in?

Richlands is in Onslow County, EPA Zone 3.

Q: What EPA radon zones surround Richlands, NC?

Richlands sits in Onslow 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 Richlands?

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

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

Richlands, NC Radon Facts

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

County Onslow County, NC

Zip Code 28574

Situated in Onslow County within the Jacksonville Metro area, Richlands lies on North Carolina's coastal plain where sandy soils and marine sediments typically produce lower radon concentrations. Testing data for zip code 28574 is limited, but the area's geological characteristics suggest generally favorable conditions. However, individual home testing remains recommended as construction factors and local variations can still influence radon accumulation.

Richlands, 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 Richlands, NC

No user-submitted radon readings are available for Richlands 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
Chinquapin	10.3 mi	Duplin County	Zone 3
Beulaville	11.5 mi	Duplin County	Zone 3
Pink Hill	14.8 mi	Lenoir County	Zone 3
Maple Hill	15.7 mi	Pender County	Zone 3
Trenton	16.3 mi	Jones County	Zone 3
Kenansville	20.5 mi	Duplin County	Zone 3
Wallace	21.6 mi	Duplin County	Zone 3
Deep Run	21.6 mi	Lenoir County	Zone 3

Onslow County Radon Profile

The EPA maps Onslow County as Radon Zone 3, the lowest predicted classification, with modeled indoor screening levels under 2 pCi/L. Direct test data for Onslow 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 Onslow County home regardless of zone or a neighbor's results.

Radon FAQ for Richlands, NC

What EPA Radon Zone is Richlands in?

Richlands and the 28574 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.

What EPA radon zones surround Richlands, NC?

Richlands sits in Onslow 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 Richlands?

Radon mitigation in Richlands 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 Richlands?

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.