Madison, NC Radon Levels

Q: What EPA Radon Zone is Madison in?

Madison is in Rockingham County, EPA Zone 1.

Q: How much does radon mitigation cost in Madison?

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

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

Madison, NC Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Rockingham County, NC

Zip Code 27025

Situated in Rockingham County within the Greensboro Metro area, Madison lies in North Carolina's Piedmont region where granite and metamorphic bedrock can contribute to elevated radon levels in local homes. Testing data for zip code 27025 is currently limited, making professional radon assessment valuable for homeowners seeking to ensure healthy indoor air quality. The area's housing characteristics, including both older rural properties and newer suburban development, both benefit from comprehensive radon testing.

6.14

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 6.14 pCi/L, based on 14 tests from 10 nearby cities. No readings have been submitted for Madison 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+

Madison, 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 Madison, NC

No homeowner tests have been submitted for Madison 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
Walnut Cove	10.8 mi	12.00 pCi/L	1
King	22.3 mi	3.00 pCi/L	1
Winston Salem	25.6 mi	6.33 pCi/L	3
Gibsonville	28.1 mi	6.00 pCi/L	1
Pilot Mountain	29.4 mi	14.00 pCi/L	1
Clemmons	33.4 mi	4.00 pCi/L	2
Yanceyville	34.5 mi	4.00 pCi/L	1
Mount Airy	37.1 mi	5.00 pCi/L	1

Rockingham County Radon Profile

Because of its underlying geology, Rockingham County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Direct test data for Rockingham 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 Rockingham County home regardless of zone or a neighbor's results.

Radon FAQ for Madison, NC

What EPA Radon Zone is Madison in?

Madison and the 27025 zip code are in Rockingham County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Madison?

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

Radon mitigation in Madison 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 Madison?

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.