Wyoming, IL Radon Levels

Q: What EPA Radon Zone is Wyoming in?

Wyoming is in Stark County, EPA Zone 1.

Q: How much does radon mitigation cost in Wyoming?

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

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

Wyoming, IL Radon Facts

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

County Stark County, IL

Zip Code 61491

Located in rural Stark County within the Peoria Metro area, Wyoming benefits from Illinois's comprehensive radon awareness programs, though local testing data remains limited. The area's glacial drift soils over limestone bedrock can create pathways for radon gas migration into homes with various foundation types. Professional testing is recommended for all residents, as Illinois geological conditions can produce unexpected radon accumulation patterns across different housing stock.

9.14

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 9.14 pCi/L, based on 14 tests from 10 nearby cities. No readings have been submitted for Wyoming 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+

Wyoming, 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 Wyoming?

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Radon Readings Near Wyoming, IL

No homeowner tests have been submitted for Wyoming 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
Kewanee	14.7 mi	8.00 pCi/L	1
Dunlap	16.6 mi	7.00 pCi/L	1
Annawan	24.4 mi	10.00 pCi/L	1
Peoria	25.7 mi	5.00 pCi/L	1
Metamora	26.3 mi	7.50 pCi/L	2
Varna	27.7 mi	20.00 pCi/L	1
Princeton	27.8 mi	11.50 pCi/L	2
Knoxville	28.5 mi	8.00 pCi/L	1

Stark County Radon Profile

Stark County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Few homeowner tests have been logged inside Stark 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 Stark County to test, as levels can differ between neighboring homes.

Radon FAQ for Wyoming, IL

What EPA Radon Zone is Wyoming in?

Wyoming and the 61491 zip code are in Stark 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 Wyoming?

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

Radon mitigation in Wyoming 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 Wyoming?

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.