Ashmore, IL Radon Levels

Q: What EPA Radon Zone is Ashmore in?

Ashmore is in Coles County, EPA Zone 1.

Q: How much does radon mitigation cost in Ashmore?

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

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

Ashmore, IL Radon Facts

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

County Coles County, IL

Zip Code 61912

This rural community in east-central Illinois's Coles County sits on deep glacial moraine deposits over limestone bedrock that contribute to the region's moderate-to-high radon potential. Testing data for zip code 61912 is currently unavailable, though the underlying geology suggests regular monitoring is advisable. The area's glacial till and limestone foundation create soil conditions that can facilitate radon gas migration into homes with basements or crawl spaces.

9.00

pCi/L area average

Above EPA Action Level

Coles County average: 9.00 pCi/L, based on 4 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Ashmore 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+

Ashmore, 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 Ashmore, IL

No homeowner tests have been submitted for Ashmore 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
Charleston	8.0 mi	8.00 pCi/L	1
Mattoon	18.5 mi	9.33 pCi/L	3
Paris	18.9 mi	9.67 pCi/L	3
Tuscola	23.1 mi	17.00 pCi/L	1
Homer	35.4 mi	20.00 pCi/L	1
Effingham	39.6 mi	4.33 pCi/L	3
Urbana	40.0 mi	15.00 pCi/L	1
Shelbyville	41.4 mi	17.00 pCi/L	1

Coles County Radon Profile

Because of its underlying geology, Coles 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 2 cities in Coles County average 9.00 pCi/L across 4 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 Coles County home regardless of zone or a neighbor's results.

Radon FAQ for Ashmore, IL

What EPA Radon Zone is Ashmore in?

Ashmore and the 61912 zip code are in Coles 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 Ashmore?

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

Radon mitigation in Ashmore 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 Ashmore?

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.