Collettsville, NC Radon Levels

Q: What EPA Radon Zone is Collettsville in?

Collettsville is in Avery County, EPA Zone 2.

Q: How much does radon mitigation cost in Collettsville?

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

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

Collettsville, NC Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Avery County, NC

Zip Code 28611

Tucked away in the Blue Ridge Mountains of Avery County, Collettsville sits in North Carolina's higher-elevation region where crystalline rock formations can produce elevated radon levels. While testing data for zip code 28611 remains limited, the mountainous geology and older home construction typical of the area warrant individual testing. Many homes in this region feature basement or crawl space foundations that can trap radon gas from the underlying granite bedrock.

9.33

pCi/L area average

Above EPA Action Level

Avery County average: 9.33 pCi/L, based on 3 user-submitted tests across 1 city in the county. No homeowner readings have been submitted for Collettsville itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Collettsville, 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 Collettsville, NC

No homeowner tests have been submitted for Collettsville yet, so the closest user-submitted readings from neighboring communities are shown below. Radon varies by home — testing is the only way to know your level.

Radon Level	City	Distance	Home Age	Foundation	Submitted
5 pCi/L	Blowing Rock, NC	9.9 mi	0-20 Years	No Basement/All Crawl Space	May 2024
10 pCi/L	Blowing Rock, NC	9.9 mi	51-99 Years	No Basement/All Crawl Space	Feb 2024
13 pCi/L	Blowing Rock, NC	9.9 mi	0-20 Years	Full Basement	Jun 2023
12 pCi/L	Blowing Rock, NC	9.9 mi	21-50 Years	Partial Basement	Jul 2022
9 pCi/L	Blowing Rock, NC	9.9 mi	0-20 Years	No Basement/All Crawl Space	Jul 2020
5 pCi/L	Banner Elk, NC	13.9 mi	21-50 Years	No Basement/All Crawl Space	Apr 2024
15 pCi/L	Banner Elk, NC	13.9 mi	21-50 Years	Full Basement	Nov 2023
8 pCi/L	Banner Elk, NC	13.9 mi	21-50 Years	No Basement/All Crawl Space	Sep 2021

Readings are drawn from the nearest cities with submitted data. Have a result for Collettsville? Submit your reading to help your neighbors.

Avery County Radon Profile

The soils and bedrock of Avery 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 1 city in Avery County average 9.33 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 Avery County to test, as levels can differ between neighboring homes.

Radon FAQ for Collettsville, NC

What EPA Radon Zone is Collettsville in?

Collettsville and the 28611 zip code are in Avery 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.

Why are radon readings shown from areas near Collettsville?

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

Radon mitigation in Collettsville 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 Collettsville?

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.

Radon Levels Near Collettsville, NC

User-submitted radon levels from the cities closest to Collettsville with recorded test data. Explore nearby communities to compare local readings.

City	Distance	Avg User Level	Submissions
Blowing Rock	9.9 mi	10.17 pCi/L	6
Banner Elk	13.9 mi	9.33 pCi/L	3
Boone	15.5 mi	16.50 pCi/L	2
Morganton	18.0 mi	2.00 pCi/L	1
Connellys Springs	21.1 mi	5.00 pCi/L	1
Fleetwood	23.1 mi	5.00 pCi/L	1
Todd	24.1 mi	9.00 pCi/L	2
Bakersville	25.0 mi	10.00 pCi/L	1