Greenwood, SC Radon Levels
Check local Greenwood radon levels and find certified testing and mitigation professionals to keep your home safe
Greenwood, SC Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Greenwood County, SC
Zip Code
29646
As the county seat of Greenwood County in South Carolina's Piedmont region, Greenwood spans multiple zip codes including 29646. The underlying crystalline bedrock and clay soils typically result in lower radon levels, though testing data remains limited. Individual testing remains important since geological variations can create localized radon sources even in generally lower-risk areas.
Greenwood, SC Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Greenwood, SC
What EPA Radon Zone is Greenwood in?
Greenwood and the 29646 zip code are in Greenwood 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 Greenwood?
Radon mitigation in Greenwood 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 Greenwood?
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 South Carolina
Cities in South Carolina with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Fort Mill | 6.00 pCi/L | 1 |
| Greenville | 5.00 pCi/L | 1 |