Cissna Park, IL Radon Levels

Q: What EPA Radon Zone is Cissna Park in?

Cissna Park is in Iroquois County, EPA Zone 1.

Q: How much does radon mitigation cost in Cissna Park?

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

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

Cissna Park, IL Radon Facts

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

County Iroquois County, IL

Zip Code 60924

This Iroquois County community sits within the deep glacial moraine deposits that characterize east-central Illinois, creating favorable conditions for radon gas production and migration. Although testing data for Cissna Park's 60924 zip code remains limited, the area's glacial drift over limestone bedrock contributes to moderate-to-high radon potential. Rural homes in this region often feature full or partial basements where radon can accumulate to concerning levels.

19.00

pCi/L area average

Above EPA Action Level

Iroquois County average: 19.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Cissna Park 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+

Cissna Park, 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 Cissna Park, IL

No homeowner tests have been submitted for Cissna Park 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
Paxton	14.7 mi	4.00 pCi/L	1
Ashkum	20.9 mi	19.00 pCi/L	1
Gifford	21.2 mi	10.00 pCi/L	1
Danville	32.5 mi	5.33 pCi/L	3
Fairbury	35.3 mi	4.00 pCi/L	1
Urbana	37.8 mi	15.00 pCi/L	1
Mahomet	38.3 mi	5.00 pCi/L	1
Homer	38.4 mi	20.00 pCi/L	1

Iroquois County Radon Profile

Iroquois 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 Iroquois County average 19.00 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 Iroquois County to test, as levels can differ between neighboring homes.

Radon FAQ for Cissna Park, IL

What EPA Radon Zone is Cissna Park in?

Cissna Park and the 60924 zip code are in Iroquois 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 Cissna Park?

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

Radon mitigation in Cissna Park 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 Cissna Park?

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.