Prairie City, IL Radon Levels

Q: What EPA Radon Zone is Prairie City in?

Prairie City is in McDonough County, EPA Zone 1.

Q: How much does radon mitigation cost in Prairie City?

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

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

Prairie City, IL Radon Facts

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

County McDonough County, IL

Zip Code 61470

Positioned in western Illinois's McDonough County, Prairie City sits on glacial till over limestone bedrock that creates favorable conditions for radon production throughout the region. The community's location in EPA Zone 1 indicates geological potential for higher radon levels. With comprehensive testing data for zip code 61470 currently unavailable, local homeowners should conduct independent radon testing to assess their individual exposure risk.

8.23

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 8.23 pCi/L, based on 13 tests from 10 nearby cities. No readings have been submitted for Prairie City 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+

Prairie City, 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 Prairie City, IL

No homeowner tests have been submitted for Prairie City 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
Cuba	17.4 mi	6.00 pCi/L	1
Monmouth	22.1 mi	8.00 pCi/L	1
Knoxville	22.4 mi	8.00 pCi/L	1
Stronghurst	25.5 mi	13.00 pCi/L	2
Dallas City	34.4 mi	9.00 pCi/L	1
Mapleton	39.6 mi	8.00 pCi/L	1
New Windsor	40.1 mi	6.00 pCi/L	1
Peoria	45.0 mi	5.00 pCi/L	1

McDonough County Radon Profile

Because of its underlying geology, McDonough County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Direct test data for McDonough County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every McDonough County home regardless of zone or a neighbor's results.

Radon FAQ for Prairie City, IL

What EPA Radon Zone is Prairie City in?

Prairie City and the 61470 zip code are in McDonough 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 Prairie City?

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

Radon mitigation in Prairie City 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 Prairie City?

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.