Winston Salem, NC Radon Mitigation and Testing

Q: What is the average radon level in Winston Salem, NC?

Based on 3 user-submitted tests, the average radon level is 6.30 pCi/L.

Q: What EPA Radon Zone is Winston Salem in?

Winston Salem is in Forsyth County, EPA Zone 2.

Q: How much does radon mitigation cost in Winston Salem?

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

Avg: 6.30 pCi/L

Forsyth County

EPA Zone 2

3 user tests

Winston Salem is located in Forsyth County, North Carolina. With 3 user-submitted readings averaging 6.30 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 27101 zip code.

6.30

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Winston Salem, NC. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Winston Salem, NC Radon Mitigation

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

Winston Salem, NC Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Winston Salem, North Carolina Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
11 pCi/L	Winston Salem, NC	21-50 Years	Partial Basement	Oct 2025
4 pCi/L	Winston Salem, NC	51-99 Years	Full Basement	May 2023

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

Winston Salem Radon Facts

Key details about the radon risk profile for Winston Salem and the 27101 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Forsyth County, NC

Zip Code

27101

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

6.30 pCi/L

User Tests Submitted

Winston Salem and the 27101 zip code are located in Forsyth County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Winston Salem, NC

What is the average radon level in Winston Salem, NC?

Based on 3 user-submitted tests, the average radon level in Winston Salem is 6.30 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 Winston Salem in?

Winston Salem and the 27101 zip code are in Forsyth 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 Winston Salem?

Radon mitigation in Winston Salem 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 Winston Salem?

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.

Most Active Radon Markets in North Carolina

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Murphy	12.83 pCi/L	6
Blowing Rock	10.17 pCi/L	6
Brevard	7.50 pCi/L	4
Cary	5.00 pCi/L	4
Highlands	4.50 pCi/L	4
Mooresville	4.00 pCi/L	4
Banner Elk	9.33 pCi/L	3
Charlotte	7.33 pCi/L	3
Denver	4.33 pCi/L	3
Hendersonville	9.00 pCi/L	2
Wake Forest	4.50 pCi/L	2
Apex	3.50 pCi/L	2
Huntersville	3.50 pCi/L	2
Raleigh	9.00 pCi/L	1
Fayetteville	5.00 pCi/L	1
Waxhaw	4.00 pCi/L	1
Chapel Hill	3.00 pCi/L	1
Clayton	No submissions	0
Fuquay Varina	No submissions	0
Holly Springs	No submissions	0