Columbia, NC Radon Levels

Q: What EPA Radon Zone is Columbia in?

Columbia is in Tyrrell County, EPA Zone 3.

Q: What EPA radon zones surround Columbia, NC?

Columbia sits in Tyrrell County, which the EPA classifies as Radon Zone 3. Among the nearby communities listed above, 8 in Zone 3 (low risk, under 2 pCi/L). EPA radon zones are county-level predictions of radon potential, so the EPA recommends testing every individual home regardless of its zone, since levels vary from house to house.

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.

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

Columbia, NC Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Tyrrell County, NC

Zip Code 27925

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.

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EPA Radon Zones Near Columbia, NC

No user-submitted radon readings are available for Columbia or its immediate area yet. The table below shows the EPA radon zone — a county-level prediction of radon risk — for nearby communities. Radon still varies from home to home, so testing is the only way to confirm your level.

City	Distance	County	EPA Radon Zone
Harbinger	27.0 mi	Currituck County	Zone 3
Point Harbor	27.1 mi	Currituck County	Zone 3
Powells Point	27.2 mi	Currituck County	Zone 3
Jarvisburg	27.7 mi	Currituck County	Zone 3
Plymouth	28.7 mi	Washington County	Zone 3
Engelhard	29.3 mi	Hyde County	Zone 3
Camden	29.4 mi	Camden County	Zone 3
Stumpy Point	29.6 mi	Dare County	Zone 3

Tyrrell County Radon Profile

Local geology places Tyrrell County in EPA Radon Zone 3, where predicted indoor radon averages fall below 2 pCi/L — though no county is risk-free. Few homeowner tests have been logged inside Tyrrell County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Tyrrell County to test, as levels can differ between neighboring homes.

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.

What EPA radon zones surround Columbia, NC?

Columbia sits in Tyrrell County, which the EPA classifies as Radon Zone 3. Among the nearby communities listed above, 8 in Zone 3 (low risk, under 2 pCi/L). EPA radon zones are county-level predictions of radon potential, so the EPA recommends testing every individual home regardless of its zone, since levels vary from house to house.

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.