Mc Connell, IL Radon Levels

Q: What EPA Radon Zone is Mc Connell in?

Mc Connell is in Stephenson County, EPA Zone 1.

Q: How much does radon mitigation cost in Mc Connell?

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

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

Mc Connell, IL Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Stephenson County, IL

Zip Code 61050

Located in northwestern Illinois's Stephenson County, Mc Connell sits atop glacial till deposits from the Wisconsin glaciation over limestone bedrock - conditions highly favorable for radon production. Testing data for zip code 61050 is currently sparse, making individual home testing crucial for all residents. The region's predominantly agricultural landscape and older farmhouses with full basements create ideal conditions for radon accumulation.

6.60

pCi/L area average

Above EPA Action Level

Stephenson County average: 6.60 pCi/L, based on 5 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Mc Connell 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+

Mc Connell, 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 Mc Connell, IL

No homeowner tests have been submitted for Mc Connell 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
Orangeville	6.8 mi	14.00 pCi/L	1
Freeport	11.1 mi	3.67 pCi/L	3
Davis	18.3 mi	8.00 pCi/L	1
Pecatonica	22.9 mi	11.00 pCi/L	1
Lanark	23.3 mi	12.00 pCi/L	3
Hanover	29.3 mi	5.00 pCi/L	1
Mount Morris	31.2 mi	4.00 pCi/L	1
Byron	32.8 mi	11.50 pCi/L	2

Stephenson County Radon Profile

Because of its underlying geology, Stephenson County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Stephenson County average 6.60 pCi/L across 5 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 Stephenson County home regardless of zone or a neighbor's results.

Radon FAQ for Mc Connell, IL

What EPA Radon Zone is Mc Connell in?

Mc Connell and the 61050 zip code are in Stephenson County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Mc Connell?

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

Radon mitigation in Mc Connell 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 Mc Connell?

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.