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Lillington, NC Radon Levels

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


Lillington, NC Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
County Harnett County, NC
Zip Code 27546
Avg. User Level 5.00 pCi/L
User Tests 2

Central North Carolina's Harnett County contains Lillington, where Triassic basin sediments have produced radon readings averaging 5.0 pCi/L, slightly above EPA action thresholds. The community's mix of rural housing and newer suburban development in the 27546 zip code creates varying conditions for radon accumulation. Given these moderately elevated readings, residents should consider professional testing and potential mitigation, particularly in homes with basements or crawl spaces.

5.00
pCi/L average
Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Lillington, NC. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Lillington, NC Radon Mitigation

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

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Lillington, NC Radon Levels

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

Radon LevelCityHome AgeFoundation
6 pCi/L Lillington, NC 0-20 Years No Basement/All Slab
4 pCi/L Lillington, NC 0-20 Years No Basement/All Slab

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

Radon Readings Near Lillington, NC

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

CityDistanceAvg User LevelReadings
Fayetteville 19.7 mi 5.00 pCi/L 1
Benson 21.9 mi 5.00 pCi/L 1
Apex 27.4 mi 3.50 pCi/L 2
Cary 31.2 mi 5.00 pCi/L 4
Pinehurst 32.7 mi 6.00 pCi/L 1
Raleigh 37.6 mi 9.00 pCi/L 1
Chapel Hill 41.1 mi 3.00 pCi/L 1
Wendell 43.8 mi 20.00 pCi/L 1

Harnett County Radon Profile

The EPA maps Harnett County as Radon Zone 3, the lowest predicted classification, with modeled indoor screening levels under 2 pCi/L. Homeowner-submitted tests from 1 city in Harnett County average 5.00 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Harnett County home regardless of zone or a neighbor's results.

Radon FAQ for Lillington, NC

What is the average radon level in Lillington, NC?
Based on 2 user-submitted tests, the average radon level in Lillington is 5.00 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 Lillington in?
Lillington and the 27546 zip code are in Harnett 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 Lillington?
Radon mitigation in Lillington 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 Lillington?
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.