Saint Peters, MO Radon Levels

Q: What is the average radon level in Saint Peters, MO?

Based on 1 user-submitted tests, the average radon level is 7.00 pCi/L.

Q: What EPA Radon Zone is Saint Peters in?

Saint Peters is in St Charles County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Saint Peters?

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

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

Saint Peters, MO Radon Facts

EPA Radon Zone Unknown Unknown

County St Charles County, MO

Zip Code 63376

Avg. User Level 7.00 pCi/L

User Tests 1

Located in St Charles County within the St. Louis metro area, this Missouri community currently lacks adequate radon testing data for residents to reference. The region's Mississippi River valley geology, combining alluvial deposits with underlying limestone bedrock, can create variable radon conditions throughout the metro area. Professional radon testing is recommended to determine individual home exposure levels in this growing suburban community.

7.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Saint Peters, MO. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Saint Peters, MO Radon Mitigation

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

Need Radon Mitigation or Testing in Saint Peters?

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Radon Readings Near Saint Peters, MO

No homeowner tests have been submitted for Saint Peters 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
Saint Charles	3.6 mi	5.00 pCi/L	1
O Fallon	6.1 mi	7.75 pCi/L	4
Lake Saint Louis	8.8 mi	5.00 pCi/L	2
Chesterfield	10.0 mi	5.00 pCi/L	1
Ballwin	13.6 mi	4.00 pCi/L	1
Hazelwood	13.8 mi	20.00 pCi/L	1
Fenton	21.0 mi	16.00 pCi/L	2
Labadie	22.6 mi	4.00 pCi/L	1

St Charles County Radon Profile

A specific EPA radon zone has not been established for St Charles County, which is why testing is advised for all homes here irrespective of geology. Homeowner-submitted tests from 5 cities in St Charles County average 6.63 pCi/L across 8 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in St Charles County to test, as levels can differ between neighboring homes.

Radon FAQ for Saint Peters, MO

What is the average radon level in Saint Peters, MO?

Based on 1 user-submitted test, the average radon level in Saint Peters is 7.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Saint Peters in?

Saint Peters and the 63376 zip code are in St Charles County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

How much does radon mitigation cost in Saint Peters?

Radon mitigation in Saint Peters 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 Saint Peters?

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.