Morrison, IL Radon Levels

Q: What EPA Radon Zone is Morrison in?

Morrison is in Whiteside County, EPA Zone 1.

Q: How much does radon mitigation cost in Morrison?

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

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

Morrison, IL Radon Facts

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

County Whiteside County, IL

Zip Code 61270

Positioned along the Rock River in northwestern Illinois, Morrison in Whiteside County benefits from alluvial valley soils, though underlying limestone formations can still contribute to radon concerns. Testing data for zip code 61270 remains limited, making individual home testing particularly important for residents. Given the area's mix of historic homes and agricultural properties, foundation characteristics can vary significantly throughout this rural community.

5.33

pCi/L area average

Above EPA Action Level

Whiteside County average: 5.33 pCi/L, based on 3 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Morrison 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+

Morrison, 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 Morrison, IL

No homeowner tests have been submitted for Morrison 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
Fulton	9.7 mi	4.00 pCi/L	1
Rock Falls	14.7 mi	6.00 pCi/L	2
Lanark	20.5 mi	12.00 pCi/L	3
Dixon	24.8 mi	14.00 pCi/L	2
Geneseo	26.2 mi	6.00 pCi/L	1
Walnut	26.7 mi	5.00 pCi/L	1
Annawan	29.1 mi	10.00 pCi/L	1
Mount Morris	31.8 mi	4.00 pCi/L	1

Whiteside County Radon Profile

The bedrock and soils beneath Whiteside County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 2 cities in Whiteside County average 5.33 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. 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 Whiteside County.

Radon FAQ for Morrison, IL

What EPA Radon Zone is Morrison in?

Morrison and the 61270 zip code are in Whiteside 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 Morrison?

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

Radon mitigation in Morrison 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 Morrison?

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.