London Mills, IL Radon Levels

Q: What EPA Radon Zone is London Mills in?

London Mills is in Fulton County, EPA Zone 1.

Q: How much does radon mitigation cost in London Mills?

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

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

London Mills, IL Radon Facts

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

County Fulton County, IL

Zip Code 61544

This small Fulton County community sits on Illinois River valley alluvial deposits over limestone bedrock, creating geological conditions that can produce variable radon levels. Testing data for the 61544 area remains limited, making individual home assessment important for residents. The community's mix of older rural properties and varying foundation types means radon entry rates can differ significantly from house to house.

6.00

pCi/L area average

Above EPA Action Level

Fulton County average: 6.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for London Mills 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+

London Mills, 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 London Mills, IL

No homeowner tests have been submitted for London Mills 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	14.2 mi	6.00 pCi/L	1
Knoxville	15.0 mi	8.00 pCi/L	1
Monmouth	25.0 mi	8.00 pCi/L	1
Mapleton	29.0 mi	8.00 pCi/L	1
Peoria	33.5 mi	5.00 pCi/L	1
Dunlap	34.1 mi	7.00 pCi/L	1
Stronghurst	35.0 mi	13.00 pCi/L	2
New Windsor	36.3 mi	6.00 pCi/L	1

Fulton County Radon Profile

Fulton 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. Homeowner-submitted tests from 1 city in Fulton County average 6.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Fulton County to test, as levels can differ between neighboring homes.

Radon FAQ for London Mills, IL

What EPA Radon Zone is London Mills in?

London Mills and the 61544 zip code are in Fulton 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 London Mills?

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

Radon mitigation in London Mills 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 London Mills?

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.