Columbia, NC Radon Mitigation and Testing

Q: What EPA Radon Zone is Columbia in?

Columbia is in Tyrrell County, EPA Zone 3.

Q: How much does radon mitigation cost in Columbia?

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

Tyrrell County

EPA Zone 3

Columbia in Tyrrell County occupies North Carolina's coastal plain region, where sandy soils and low-lying topography generally create minimal radon risk. The area's proximity to the Albemarle Sound and underlying sedimentary geology typically results in lower radon levels than inland counties. However, with limited testing data available for zip code 27925, residents should still test their homes to establish individual baseline readings.

Columbia, NC Radon Mitigation

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

Columbia, NC Radon Testing

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

Columbia Radon Facts

Key details about the radon risk profile for Columbia and the 27925 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Tyrrell County, NC

Zip Code

27925

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Columbia and the 27925 zip code are located in Tyrrell County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Columbia, NC

What EPA Radon Zone is Columbia in?

Columbia and the 27925 zip code are in Tyrrell County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Columbia?

Radon mitigation in Columbia 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 Columbia?

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