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Charlotte, NC Radon Levels

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


Charlotte, NC Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
County Mecklenburg County, NC
Zip Code 28202
Avg. User Level 7.30 pCi/L
User Tests 3

Downtown Charlotte in Mecklenburg County's 28202 zip code sits within the Carolina Piedmont, where granite bedrock and weathered soils create variable radon conditions across the metro area. Testing data reveals an average level of 7.33 pCi/L, notably exceeding the EPA's 4.0 pCi/L action level and requiring mitigation consideration. The urban core's mix of high-rise residential buildings and converted historic structures presents unique radon management challenges compared to suburban single-family homes.

7.30
pCi/L average
Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Charlotte, NC. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Charlotte, NC Radon Mitigation

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

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Charlotte, NC Radon Levels

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

Radon LevelCityHome AgeFoundation
3 pCi/L Charlotte, NC 0-20 Years No Basement/All Slab
13 pCi/L Charlotte, NC 0-20 Years No Basement/All Slab
6 pCi/L Charlotte , NC 0-20 Years Full Basement

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

Radon Readings Near Charlotte, NC

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

CityDistanceAvg User LevelReadings
Mount Holly 13.2 mi 3.00 pCi/L 1
Huntersville 13.2 mi 3.50 pCi/L 2
Cornelius 18.2 mi 4.00 pCi/L 1
Gastonia 18.6 mi 3.00 pCi/L 1
Concord 19.2 mi 4.00 pCi/L 1
Waxhaw 20.7 mi 4.00 pCi/L 1
Denver 20.8 mi 4.33 pCi/L 3
Dallas 21.8 mi 3.00 pCi/L 1

Mecklenburg County Radon Profile

Mecklenburg 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 3 cities in Mecklenburg County average 5.50 pCi/L across 6 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 Mecklenburg County.

Radon FAQ for Charlotte, NC

What is the average radon level in Charlotte, NC?
Based on 3 user-submitted tests, the average radon level in Charlotte is 7.30 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 Charlotte in?
Charlotte and the 28202 zip code are in Mecklenburg 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.
How much does radon mitigation cost in Charlotte?
Radon mitigation in Charlotte 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 Charlotte?
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.