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Raleigh, NC Radon Levels

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


Raleigh, NC Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Wake County, NC
Zip Code 27601
Avg. User Level 9.00 pCi/L
User Tests 1

North Carolina's capital city in Wake County shows an average radon level of 9.0 pCi/L, which significantly exceeds the EPA action threshold and requires immediate mitigation attention. The area's Piedmont geology combines granite bedrock with clay-rich soils that contribute to elevated radon potential throughout the Raleigh Metro region. With diverse housing stock ranging from historic homes to modern subdivisions, professional testing and potential mitigation are essential for protecting residents across all zip codes.

9.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Raleigh, NC. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Raleigh, NC Radon Mitigation

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

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Raleigh, NC Radon Levels

User-submitted radon test readings from homes in the Raleigh area.

Radon LevelCityHome AgeFoundation
9 pCi/L Raleigh, NC 21-50 Years Full Basement

Have a radon test result for Raleigh? Submit your reading to help other homeowners.

Radon Readings Near Raleigh, NC

Compare radon levels in Raleigh with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Cary 9.6 mi 5.00 pCi/L 4
Wake Forest 12.2 mi 4.50 pCi/L 2
Apex 13.0 mi 3.50 pCi/L 2
Wendell 14.6 mi 20.00 pCi/L 1
Zebulon 18.6 mi 9.00 pCi/L 1
Chapel Hill 23.0 mi 3.00 pCi/L 1
Stem 25.9 mi 3.00 pCi/L 1
Louisburg 27.0 mi 3.50 pCi/L 2

Wake County Radon Profile

Wake County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 6 cities in Wake County average 6.73 pCi/L across 11 tests — 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 Wake County.

Radon FAQ for Raleigh, NC

What is the average radon level in Raleigh, NC?
Based on 1 user-submitted test, the average radon level in Raleigh is 9.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Raleigh in?
Raleigh and the 27601 zip code are in Wake County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Raleigh?
Radon mitigation in Raleigh 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 Raleigh?
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.