Sylva, NC Radon Levels

Q: What EPA Radon Zone is Sylva in?

Sylva is in Jackson County, EPA Zone 2.

Q: Why are radon readings shown from areas near Sylva?

No homeowner radon tests have been submitted for Sylva yet, so readings from the closest cities and the Jackson County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Sylva?

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

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

Sylva, NC Radon Facts

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

County Jackson County, NC

Zip Code 28779

Located in western North Carolina's Jackson County within the Blue Ridge Mountains, Sylva sits where crystalline bedrock and mountain soils create moderate radon potential. Testing data for this 28779 zip code community is currently limited, making individual home assessment valuable for establishing baseline readings. The town's mountain setting and mix of older homes and newer construction can create varying radon scenarios depending on elevation, foundation type, and local geological conditions.

4.67

pCi/L area average

Above EPA Action Level

Jackson County average: 4.67 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Sylva 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+

Sylva, 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 Sylva, NC

No homeowner tests have been submitted for Sylva 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
4 pCi/L	Whittier, NC	8.3 mi	0-20 Years	Full Basement	May 2018
4 pCi/L	Tuckasegee, NC	9.5 mi	0-20 Years	Full Basement	Nov 2024
20 pCi/L	Bryson City, NC	14.3 mi	0-20 Years	Full Basement	Aug 2020
6 pCi/L	Franklin, NC	15.6 mi	0-20 Years	Full Basement	Mar 2017
2 pCi/L	Waynesville, NC	17.1 mi	51-99 Years	—	Oct 2024
6 pCi/L	Cashiers, NC	18.5 mi	0-20 Years	Partial Basement	Jun 2025
6 pCi/L	Highlands, NC	19.2 mi	21-50 Years	Full Basement	Jan 2025
4 pCi/L	Highlands, NC	19.2 mi	0-20 Years	No Basement/All Slab	Aug 2023

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

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 Sylva, NC

What EPA Radon Zone is Sylva in?

Sylva and the 28779 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.

Why are radon readings shown from areas near Sylva?

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

Radon mitigation in Sylva 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 Sylva?

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 Sylva, NC

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

City	Distance	Avg User Level	Submissions
Whittier	8.3 mi	4.00 pCi/L	1
Tuckasegee	9.5 mi	4.00 pCi/L	1
Bryson City	14.3 mi	20.00 pCi/L	1
Franklin	15.6 mi	6.00 pCi/L	1
Waynesville	17.1 mi	2.00 pCi/L	1
Cashiers	18.5 mi	6.00 pCi/L	1
Highlands	19.2 mi	4.50 pCi/L	4
Lake Toxaway	21.3 mi	4.00 pCi/L	1