Joplin, MO Radon Levels

Q: What EPA Radon Zone is Joplin in?

Joplin is in Jasper County, EPA Zone 2.

Q: Why are radon readings shown from areas near Joplin?

No homeowner radon tests have been submitted for Joplin yet, so readings from the closest cities and the Jasper County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Joplin?

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

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

Joplin, MO Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Jasper County, MO

Zip Code 64801

Spanning both Jasper County and Newton County, Joplin sits atop Mississippian limestone bedrock in southwest Missouri's mining region. The city's diverse housing stock includes both historic homes with full basements and post-tornado reconstruction featuring modern foundations. While comprehensive radon data is currently limited for this metro area, the underlying limestone geology suggests testing would be beneficial for homeowners across zip codes 64801 and 64804.

6.00

pCi/L area average

Above EPA Action Level

Jasper County average: 6.00 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Joplin itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Joplin, MO Radon Mitigation

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

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Radon Readings Near Joplin, MO

No homeowner tests have been submitted for Joplin yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Webb City	5.4 mi	7.00 pCi/L	1
Carl Junction	7.9 mi	5.00 pCi/L	1

Jasper County Radon Profile

EPA mapping assigns Jasper County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 2 cities in Jasper County average 6.00 pCi/L across 2 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Jasper County home regardless of zone or a neighbor's results.

Radon FAQ for Joplin, MO

What EPA Radon Zone is Joplin in?

Joplin and the 64801 zip code are in Jasper 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.

Why are radon readings shown from areas near Joplin?

No homeowner radon tests have been submitted for Joplin yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Jasper County average—are the best available indicator of local conditions until Joplin homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Joplin?

Radon mitigation in Joplin 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 Joplin?

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.