Sullivan, MO Radon Levels

Q: What EPA Radon Zone is Sullivan in?

Sullivan is in Crawford County, EPA Zone 2.

Q: How much does radon mitigation cost in Sullivan?

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

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

Sullivan, MO Radon Facts

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

County Crawford County, MO

Zip Code 63080

Nestled in Crawford County, Sullivan lies within Missouri's Ozark region where limestone karst geology creates varied radon conditions across residential neighborhoods. Local testing data remains limited, making home radon testing particularly important for families in zip code 63080. The city's mix of older homes with basement foundations and newer construction can show significant variation in radon accumulation patterns.

5.00

pCi/L area average

Above EPA Action Level

Crawford County average: 5.00 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Sullivan 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+

Sullivan, 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 Sullivan, MO

No homeowner tests have been submitted for Sullivan 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
Bourbon	5.4 mi	6.00 pCi/L	1
Leasburg	12.2 mi	4.00 pCi/L	1
Union	16.6 mi	13.00 pCi/L	1
Cuba	16.7 mi	5.00 pCi/L	1
New Haven	24.0 mi	5.00 pCi/L	1
Labadie	25.1 mi	4.00 pCi/L	1
De Soto	33.6 mi	11.00 pCi/L	1
House Springs	34.8 mi	7.00 pCi/L	1

Crawford County Radon Profile

Crawford County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. Homeowner-submitted tests from 3 cities in Crawford County average 5.00 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Crawford County.

Radon FAQ for Sullivan, MO

What EPA Radon Zone is Sullivan in?

Sullivan and the 63080 zip code are in Crawford 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 Sullivan?

No homeowner radon tests have been submitted for Sullivan yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Crawford County average—are the best available indicator of local conditions until Sullivan 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 Sullivan?

Radon mitigation in Sullivan 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 Sullivan?

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.