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Cullowhee, NC Radon Levels

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


Cullowhee, NC Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Jackson County, NC
Zip Code 28723
Avg. User Level 5.00 pCi/L
User Tests 1

Nestled in Jackson County within North Carolina's Blue Ridge Mountains, Cullowhee sits on ancient crystalline rock formations that can produce variable radon levels. Current testing data for zip code 28723 remains limited, making professional radon testing advisable for mountain residents. This university community features a mix of older Appalachian homes and modern construction, with basement and crawl space foundations common to the mountainous terrain.

5.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Cullowhee, NC Radon Mitigation

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

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Cullowhee, NC Radon Levels

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

Radon LevelCityHome AgeFoundation
5 pCi/L Cullowhee, NC 51-99 Years Full Basement

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

Radon Readings Near Cullowhee, NC

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

CityDistanceAvg User LevelReadings
Tuckasegee 4.3 mi 4.00 pCi/L 1
Cashiers 10.5 mi 6.00 pCi/L 1
Highlands 12.4 mi 4.50 pCi/L 4
Franklin 14.2 mi 6.00 pCi/L 1
Lake Toxaway 14.5 mi 4.00 pCi/L 1
Whittier 16.3 mi 4.00 pCi/L 1
Scaly Mountain 17.7 mi 11.00 pCi/L 1
Rosman 19.6 mi 4.00 pCi/L 1

Jackson County Radon Profile

The soils and bedrock of Jackson County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 3 cities in Jackson County average 4.67 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Jackson County to test, as levels can differ between neighboring homes.

Radon FAQ for Cullowhee, NC

What is the average radon level in Cullowhee, NC?
Based on 1 user-submitted test, the average radon level in Cullowhee 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 Cullowhee in?
Cullowhee and the 28723 zip code are in Jackson 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 Cullowhee?
Radon mitigation in Cullowhee 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 Cullowhee?
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.