Grand Tower, IL Radon Levels

Q: What EPA Radon Zone is Grand Tower in?

Grand Tower is in Jackson County, EPA Zone 2.

Q: How much does radon mitigation cost in Grand Tower?

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

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

Grand Tower, IL Radon Facts

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

County Jackson County, IL

Zip Code 62942

Situated in Jackson County along the Mississippi River, Grand Tower benefits from floodplain geology that can help moderate radon accumulation compared to inland areas. However, with limited testing data available for the 62942 zip code, homeowners should still conduct radon testing to ensure safety. The community's river location and underlying Mississippian limestone create conditions where radon levels can vary depending on elevation and proximity to the water.

5.50

pCi/L area average

Above EPA Action Level

Jackson County average: 5.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Grand Tower 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+

Grand Tower, IL 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 Grand Tower, IL

No homeowner tests have been submitted for Grand Tower 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
Murphysboro	13.0 mi	10.00 pCi/L	1
Campbell Hill	20.5 mi	1.00 pCi/L	1
Marion	31.9 mi	5.00 pCi/L	1
Marissa	44.5 mi	4.00 pCi/L	1

Jackson County Radon Profile

EPA mapping assigns Jackson 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 2 cities in Jackson County average 5.50 pCi/L across 2 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 Jackson County home regardless of zone or a neighbor's results.

Radon FAQ for Grand Tower, IL

What EPA Radon Zone is Grand Tower in?

Grand Tower and the 62942 zip code are in Jackson 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 Grand Tower?

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

Radon mitigation in Grand Tower 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 Grand Tower?

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.