Greensboro, NC Radon Levels

Q: What EPA Radon Zone is Greensboro in?

Greensboro is in Guilford County, EPA Zone 3.

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

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

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

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

Greensboro, NC Radon Facts

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

County Guilford County, NC

Zip Code 27395

Located in Guilford County at zip code 27395, this area of Greensboro currently lacks comprehensive radon testing data. The Piedmont region's complex geology of metamorphic and igneous rocks can create variable radon conditions throughout the metropolitan area. Homeowners should prioritize testing given North Carolina's moderate radon potential.

6.00

pCi/L area average

Above EPA Action Level

Guilford County average: 6.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Greensboro 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+

Greensboro, 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 Greensboro, NC

No homeowner tests have been submitted for Greensboro 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
Gibsonville	14.3 mi	6.00 pCi/L	1
Winston Salem	24.3 mi	6.33 pCi/L	3
Walnut Cove	24.4 mi	12.00 pCi/L	1
Asheboro	27.6 mi	5.00 pCi/L	2
Clemmons	32.3 mi	4.00 pCi/L	2
King	33.2 mi	3.00 pCi/L	1
Yanceyville	33.8 mi	4.00 pCi/L	1
Efland	35.3 mi	5.00 pCi/L	1

Guilford County Radon Profile

Guilford County is classified as EPA Radon Zone 3, the lowest predicted-risk tier, with modeled indoor screening averages below 2 pCi/L. Homeowner-submitted tests from 1 city in Guilford County average 6.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Guilford County.

Radon FAQ for Greensboro, NC

What EPA Radon Zone is Greensboro in?

Greensboro and the 27395 zip code are in Guilford 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 Greensboro?

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

Radon mitigation in Greensboro 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 Greensboro?

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.