Dunn, NC Radon Levels

Q: What EPA Radon Zone is Dunn in?

Dunn is in Harnett County, EPA Zone 3.

Q: Why are radon readings shown from areas near Dunn?

No homeowner radon tests have been submitted for Dunn yet, so readings from the closest cities and the Harnett County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Dunn?

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

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

Dunn, NC Radon Facts

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

County Harnett County, NC

Zip Code 28334

Located in Harnett County within the Coastal Plain region, Dunn sits where sedimentary geology typically produces lower radon potential compared to piedmont areas. However, testing data for zip code 28334 remains limited, encouraging residents to verify their home's radon levels through professional testing. The mix of older and newer homes in this Fayetteville Metro community includes various foundation types that can influence radon accumulation patterns.

5.00

pCi/L area average

Above EPA Action Level

Harnett County average: 5.00 pCi/L, based on 2 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Dunn itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Dunn, NC Radon Mitigation

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

Need Radon Mitigation or Testing in Dunn?

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Radon Readings Near Dunn, NC

No homeowner tests have been submitted for Dunn yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Benson	7.3 mi	5.00 pCi/L	1
Lillington	17.3 mi	5.00 pCi/L	2
Fayetteville	25.1 mi	5.00 pCi/L	1
Apex	30.8 mi	3.50 pCi/L	2
Cary	33.4 mi	5.00 pCi/L	4
Raleigh	35.5 mi	9.00 pCi/L	1
Wendell	35.5 mi	20.00 pCi/L	1
Zebulon	39.4 mi	9.00 pCi/L	1

Harnett County Radon Profile

The EPA maps Harnett County as Radon Zone 3, the lowest predicted classification, with modeled indoor screening levels under 2 pCi/L. Homeowner-submitted tests from 1 city in Harnett County average 5.00 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Harnett County home regardless of zone or a neighbor's results.

Radon FAQ for Dunn, NC

What EPA Radon Zone is Dunn in?

Dunn and the 28334 zip code are in Harnett 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.

Why are radon readings shown from areas near Dunn?

No homeowner radon tests have been submitted for Dunn yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Harnett County average—are the best available indicator of local conditions until Dunn homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Dunn?

Radon mitigation in Dunn 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 Dunn?

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.