Villa Ridge, MO Radon Levels

Q: What EPA Radon Zone is Villa Ridge in?

Villa Ridge is in Franklin County, EPA Zone 2.

Q: How much does radon mitigation cost in Villa Ridge?

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

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

Villa Ridge, MO Radon Facts

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

County Franklin County, MO

Zip Code 63089

Located in Franklin County southwest of St. Louis, Villa Ridge sits atop Ozark Plateau limestone and dolomite formations known for moderate-to-high radon potential. Although specific testing data for 63089 is currently limited, the geological setting suggests homeowners should prioritize radon testing. The area's mix of suburban development and rural properties features various foundation styles that can influence radon accumulation patterns.

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 Villa Ridge 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+

Villa Ridge, 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 Villa Ridge, MO

No homeowner tests have been submitted for Villa Ridge 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
Labadie	4.1 mi	4.00 pCi/L	1
Union	7.6 mi	13.00 pCi/L	1
House Springs	17.9 mi	7.00 pCi/L	1
New Haven	20.3 mi	5.00 pCi/L	1
Ballwin	20.5 mi	4.00 pCi/L	1
Chesterfield	20.8 mi	5.00 pCi/L	1
Fenton	22.6 mi	16.00 pCi/L	2
Lake Saint Louis	23.6 mi	5.00 pCi/L	2

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 Villa Ridge, MO

What EPA Radon Zone is Villa Ridge in?

Villa Ridge and the 63089 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 Villa Ridge?

No homeowner radon tests have been submitted for Villa Ridge 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 Villa Ridge 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 Villa Ridge?

Radon mitigation in Villa Ridge 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 Villa Ridge?

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.