Durham, NC Radon Levels

Q: What EPA Radon Zone is Durham in?

Durham is in Durham County, EPA Zone 3.

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

No homeowner radon tests have been submitted for Durham yet, so readings from the closest cities and the Durham 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 Durham?

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

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

Durham, NC Radon Facts

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

County Durham County, NC

Zip Code 27701

Centered in Durham County within the Durham Metro area, this vibrant city sits in North Carolina's Piedmont region where crystalline bedrock and clay soils create variable radon conditions. The diverse housing stock across zip codes 27701, 27703, 27704, 27705, and 27706 ranges from historic neighborhoods to modern subdivisions with different foundation types. Although specific local testing data is unavailable, residents should test their homes as the Piedmont's granite-based geology can produce surprising radon variations between neighboring properties.

4.75

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 4.75 pCi/L, based on 16 tests from 10 nearby cities. No readings have been submitted for Durham yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Durham, NC Radon Mitigation

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

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Radon Readings Near Durham, NC

No homeowner tests have been submitted for Durham 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
Chapel Hill	9.5 mi	3.00 pCi/L	1
Hillsborough	11.4 mi	3.00 pCi/L	1
Rougemont	16.6 mi	9.00 pCi/L	1
Cary	16.6 mi	5.00 pCi/L	4
Efland	16.7 mi	5.00 pCi/L	1
Stem	17.4 mi	3.00 pCi/L	1
Raleigh	18.7 mi	9.00 pCi/L	1
Apex	19.6 mi	3.50 pCi/L	2

Durham County Radon Profile

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

Radon FAQ for Durham, NC

What EPA Radon Zone is Durham in?

Durham and the 27701 zip code are in Durham 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 Durham?

No homeowner radon tests have been submitted for Durham yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Durham County average—are the best available indicator of local conditions until Durham 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 Durham?

Radon mitigation in Durham 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 Durham?

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.