Casey, IL Radon Levels

Q: What EPA Radon Zone is Casey in?

Casey is in Clark County, EPA Zone 2.

Q: Why are radon readings shown from areas near Casey?

No homeowner radon tests have been submitted for Casey yet, so readings from the closest cities and the Clark County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Casey?

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

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

Casey, IL Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Clark County, IL

Zip Code 62420

Situated in Clark County within east-central Illinois, Casey sits atop glacial deposits and sedimentary bedrock that can produce moderate radon levels. The small community features older homes and rural residences, many with basement foundations typical of Illinois construction. With radon testing data currently sparse for this area, homeowners should consider professional testing to establish baseline radon levels for their properties.

10.27

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 10.27 pCi/L, based on 15 tests from 8 nearby cities. No readings have been submitted for Casey 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+

Casey, 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 Casey, IL

No homeowner tests have been submitted for Casey 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	16.2 mi	8.00 pCi/L	1
Mattoon	24.0 mi	9.33 pCi/L	3
Paris	26.6 mi	9.67 pCi/L	3
Palestine	28.8 mi	18.50 pCi/L	2
Effingham	32.9 mi	4.33 pCi/L	3
Tuscola	37.7 mi	17.00 pCi/L	1
Bridgeport	42.9 mi	5.00 pCi/L	1
Shelbyville	44.8 mi	17.00 pCi/L	1

Clark County Radon Profile

Clark County is mapped as EPA Radon Zone 2, where the local geology is predicted to produce moderate indoor screening levels between 2 and 4 pCi/L. User-submitted readings are still sparse within Clark County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Clark County.

Radon FAQ for Casey, IL

What EPA Radon Zone is Casey in?

Casey and the 62420 zip code are in Clark County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Casey?

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

Radon mitigation in Casey 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 Casey?

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.