Warren, IL Radon Levels

Q: What EPA Radon Zone is Warren in?

Warren is in Jo Daviess County, EPA Zone 1.

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

No homeowner radon tests have been submitted for Warren yet, so readings from the closest cities and the Jo Daviess 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 Warren?

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

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

Warren, IL Radon Facts

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

County Jo Daviess County, IL

Zip Code 61087

Perched in Jo Daviess County along Illinois's northwestern border, Warren sits within an area of driftless topography where bedrock lies closer to the surface than in much of the state. Although specific testing data is currently unavailable, the EPA Zone 1 classification indicates significant radon potential. The community's location near the Mississippi River bluffs and underlying dolomite formations creates geological conditions that warrant immediate testing by all residents.

5.50

pCi/L area average

Above EPA Action Level

Jo Daviess County average: 5.50 pCi/L, based on 4 user-submitted tests across 4 cities in the county. No homeowner readings have been submitted for Warren 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+

Warren, 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 Warren, IL

No homeowner tests have been submitted for Warren 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
Orangeville	17.4 mi	14.00 pCi/L	1
Hanover	22.2 mi	5.00 pCi/L	1
Freeport	22.2 mi	3.67 pCi/L	3
Galena	22.6 mi	1.00 pCi/L	1
Lanark	28.5 mi	12.00 pCi/L	3
Davis	29.7 mi	8.00 pCi/L	1
East Dubuque	31.5 mi	8.00 pCi/L	2
Pecatonica	35.0 mi	11.00 pCi/L	1

Jo Daviess County Radon Profile

The bedrock and soils beneath Jo Daviess 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 4 cities in Jo Daviess County average 5.50 pCi/L across 4 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 Jo Daviess County.

Radon FAQ for Warren, IL

What EPA Radon Zone is Warren in?

Warren and the 61087 zip code are in Jo Daviess 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 Warren?

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

Radon mitigation in Warren 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 Warren?

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.