Siloam, NC Radon Levels

Q: What EPA Radon Zone is Siloam in?

Siloam is in Surry County, EPA Zone 2.

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

No homeowner radon tests have been submitted for Siloam yet, so readings from the closest cities and the Surry 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 Siloam?

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

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

Siloam, NC Radon Facts

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

County Surry County, NC

Zip Code 27047

Small Surry County community in the foothills of North Carolina's Blue Ridge Mountains, Siloam sits on granite and gneiss bedrock that can produce elevated radon levels. With testing data unavailable for ZIP code 27047, residents should prioritize radon testing given the area's crystalline geology and potential for gas accumulation in basement foundations.

9.50

pCi/L area average

Above EPA Action Level

Surry County average: 9.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Siloam 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+

Siloam, 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 Siloam, NC

No homeowner tests have been submitted for Siloam yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Pilot Mountain	9.0 mi	14.00 pCi/L	1
King	12.3 mi	3.00 pCi/L	1
Mount Airy	14.0 mi	5.00 pCi/L	1
Clemmons	21.0 mi	4.00 pCi/L	2
Winston Salem	23.4 mi	6.33 pCi/L	3
Walnut Cove	23.9 mi	12.00 pCi/L	1
Roaring Gap	25.2 mi	11.00 pCi/L	1
Harmony	25.7 mi	5.00 pCi/L	1

Surry County Radon Profile

EPA mapping assigns Surry County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 2 cities in Surry County average 9.50 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 Surry County home regardless of zone or a neighbor's results.

Radon FAQ for Siloam, NC

What EPA Radon Zone is Siloam in?

Siloam and the 27047 zip code are in Surry 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 Siloam?

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

Radon mitigation in Siloam 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 Siloam?

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.