Ridgway, IL Radon Levels

Q: What EPA Radon Zone is Ridgway in?

Ridgway is in Gallatin County, EPA Zone 2.

Q: How much does radon mitigation cost in Ridgway?

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

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

Ridgway, IL Radon Facts

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

County Gallatin County, IL

Zip Code 62979

Located in southeastern Illinois's Gallatin County, Ridgway sits within the Shawnee Hills region where sandstone and shale formations generally produce lower radon levels compared to northern Illinois. The community's housing reflects typical rural southern Illinois construction with a mix of older residential properties and mobile homes on various foundation types. Despite limited testing data for zip code 62979, homeowners should still consider individual radon testing as geological conditions can create localized elevated readings.

4.75

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 4.75 pCi/L, based on 4 tests from 3 nearby cities. No readings have been submitted for Ridgway yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Ridgway, IL 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 Ridgway?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Gallatin County Pros

1-800-299-3578 217-717-8001 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Ridgway, IL

No homeowner tests have been submitted for Ridgway 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
Marion	36.9 mi	5.00 pCi/L	1
Mount Carmel	49.3 mi	5.00 pCi/L	2
Mount Vernon	50.0 mi	4.00 pCi/L	1

Gallatin County Radon Profile

The soils and bedrock of Gallatin County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Few homeowner tests have been logged inside Gallatin County so far, which is why this page draws on the nearest recorded readings to illustrate regional radon levels. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Gallatin County to test, as levels can differ between neighboring homes.

Radon FAQ for Ridgway, IL

What EPA Radon Zone is Ridgway in?

Ridgway and the 62979 zip code are in Gallatin 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 Ridgway?

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

Radon mitigation in Ridgway 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 Ridgway?

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.