Weldon, IL Radon Levels

Q: What EPA Radon Zone is Weldon in?

Weldon is in De Witt County, EPA Zone 1.

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

No homeowner radon tests have been submitted for Weldon yet, so readings from the closest cities and the De Witt 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 Weldon?

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

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

Weldon, IL Radon Facts

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

County De Witt County, IL

Zip Code 61882

Nestled in central Illinois prairie within De Witt County, Weldon sits where deep glacial moraine deposits over limestone bedrock contribute to the region's elevated radon potential. The area features a mix of older farmstead properties and mid-century homes, many with full or partial basements that can trap radon gas. While specific testing data for zip code 61882 remains limited, the geological conditions suggest homeowners should conduct radon testing.

8.39

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 8.39 pCi/L, based on 18 tests from 10 nearby cities. No readings have been submitted for Weldon 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+

Weldon, 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 Weldon, IL

No homeowner tests have been submitted for Weldon 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
Monticello	11.6 mi	4.50 pCi/L	2
Le Roy	15.8 mi	5.00 pCi/L	1
Mahomet	19.8 mi	5.00 pCi/L	1
Champaign	25.6 mi	6.67 pCi/L	3
Bloomington	27.2 mi	11.33 pCi/L	3
Normal	30.0 mi	7.25 pCi/L	4
Urbana	30.0 mi	15.00 pCi/L	1
Tuscola	33.3 mi	17.00 pCi/L	1

De Witt County Radon Profile

Because of its underlying geology, De Witt 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 De Witt 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 De Witt County home regardless of zone or a neighbor's results.

Radon FAQ for Weldon, IL

What EPA Radon Zone is Weldon in?

Weldon and the 61882 zip code are in De Witt 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 Weldon?

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

Radon mitigation in Weldon 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 Weldon?

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.