King, NC Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 3.00 pCi/L.

Q: What EPA Radon Zone is King in?

King is in Stokes County, EPA Zone 2.

Q: How much does radon mitigation cost in King?

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

Avg: 3.00 pCi/L

Stokes County

EPA Zone 2

1 user test

Located in Stokes County within the Winston Metro area, King recorded an average radon level of 3.0 pCi/L based on available testing data. This reading falls within the EPA's recommended range, though individual homes may vary significantly due to the area's Piedmont geology and mixed housing stock. Homeowners in zip code 27021 should still conduct testing, as geological conditions in the foothills can produce elevated readings in some properties.

3.00

pCi/L average

Below EPA Action Level

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

4.0 EPA

10+

King, NC Radon Mitigation

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

King, NC Radon Testing

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

King, North Carolina Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
3 pCi/L	King, NC	21-50 Years	—	May 2023

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

King Radon Facts

Key details about the radon risk profile for King and the 27021 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Stokes County, NC

Zip Code

27021

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

3.00 pCi/L

User Tests Submitted

King and the 27021 zip code are located in Stokes 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 King, NC

What is the average radon level in King, NC?

Based on 1 user-submitted test, the average radon level in King is 3.00 pCi/L. This is below the EPA's recommended action level of 4.0 pCi/L. However, we recommend all homes be tested regardless of your neighbor's results.

What EPA Radon Zone is King in?

King and the 27021 zip code are in Stokes 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 King?

Radon mitigation in King 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 King?

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