Benton City, MO Radon Levels

Q: What EPA Radon Zone is Benton City in?

Benton City is in Audrain County, EPA Zone 2.

Q: How much does radon mitigation cost in Benton City?

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

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

Benton City, MO Radon Facts

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

County Audrain County, MO

Zip Code 65232

Found in central Missouri's Audrain County, Benton City sits in EPA zone 2 where the state's limestone bedrock and prairie soils can produce variable radon readings. Current testing data for zip code 65232 is limited, making individual home testing important for residents to understand their specific risk. The area's mix of older farmhouses and newer construction means foundation types vary considerably, affecting how radon might enter homes.

4.00

pCi/L area average

Above EPA Action Level

Audrain County average: 4.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Benton City 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+

Benton City, 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 Benton City, MO

No homeowner tests have been submitted for Benton City 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
Mexico	7.5 mi	4.00 pCi/L	1
Hallsville	24.6 mi	5.00 pCi/L	2
Columbia	29.7 mi	3.00 pCi/L	2
Holts Summit	38.6 mi	4.00 pCi/L	1
Troy	43.9 mi	8.50 pCi/L	4
Jefferson City	45.1 mi	6.00 pCi/L	1
Hannibal	45.3 mi	6.00 pCi/L	2
New Haven	47.6 mi	5.00 pCi/L	1

Audrain County Radon Profile

Audrain 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 1 city in Audrain County average 4.00 pCi/L across 1 test — 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 Audrain County.

Radon FAQ for Benton City, MO

What EPA Radon Zone is Benton City in?

Benton City and the 65232 zip code are in Audrain 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 Benton City?

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

Radon mitigation in Benton City 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 Benton City?

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.