Gerald, MO Radon Levels

Q: What EPA Radon Zone is Gerald in?

Gerald is in Franklin County, EPA Zone 2.

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

No homeowner radon tests have been submitted for Gerald yet, so readings from the closest cities and the Franklin 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 Gerald?

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

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

Gerald, MO Radon Facts

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

County Franklin County, MO

Zip Code 63037

Gerald residents in Franklin County within the St. Louis Metro area live where Missouri's complex geology creates moderate radon potential. With limited testing data available for this 63037 community, homeowners should prioritize radon assessment given the region's limestone bedrock and variable soil conditions. The area's mix of older rural homes and newer construction both benefit from professional radon evaluation.

7.33

pCi/L area average

Above EPA Action Level

Franklin County average: 7.33 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Gerald 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+

Gerald, 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 Gerald, MO

No homeowner tests have been submitted for Gerald 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	12.9 mi	6.00 pCi/L	1
New Haven	15.8 mi	5.00 pCi/L	1
Union	16.1 mi	13.00 pCi/L	1
Leasburg	17.9 mi	4.00 pCi/L	1
Cuba	18.9 mi	5.00 pCi/L	1
Labadie	25.4 mi	4.00 pCi/L	1
Rolla	37.6 mi	4.50 pCi/L	2
House Springs	40.1 mi	7.00 pCi/L	1

Franklin County Radon Profile

EPA mapping assigns Franklin 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 3 cities in Franklin County average 7.33 pCi/L across 3 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 Franklin County home regardless of zone or a neighbor's results.

Radon FAQ for Gerald, MO

What EPA Radon Zone is Gerald in?

Gerald and the 63037 zip code are in Franklin 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 Gerald?

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

Radon mitigation in Gerald 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 Gerald?

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.