Allendale, IL Radon Levels

Q: What EPA Radon Zone is Allendale in?

Allendale is in Wabash County, EPA Zone 2.

Q: How much does radon mitigation cost in Allendale?

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

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

Allendale, IL Radon Facts

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

County Wabash County, IL

Zip Code 62410

Found in Wabash County in southeastern Illinois near the Indiana border, Allendale sits within Pennsylvanian-era coal measures and shale deposits that create moderate radon potential. This small rural community in zip code 62410 features typical southern Illinois housing including older farmhouses and newer ranch-style homes, many with partial or full basements. Since radon testing data for Allendale is currently limited, residents should consider conducting independent tests to better understand local radon conditions and ensure safe indoor air quality.

5.00

pCi/L area average

Above EPA Action Level

Wabash County average: 5.00 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Allendale 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+

Allendale, 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 Allendale, IL

No homeowner tests have been submitted for Allendale 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
Mount Carmel	8.4 mi	5.00 pCi/L	2
Bridgeport	12.9 mi	5.00 pCi/L	1
Palestine	33.6 mi	18.50 pCi/L	2

Wabash County Radon Profile

EPA mapping assigns Wabash 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 Wabash County average 5.00 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 Wabash County home regardless of zone or a neighbor's results.

Radon FAQ for Allendale, IL

What EPA Radon Zone is Allendale in?

Allendale and the 62410 zip code are in Wabash 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 Allendale?

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

Radon mitigation in Allendale 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 Allendale?

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.