West Chicago, IL Radon Levels

Q: What EPA Radon Zone is West Chicago in?

West Chicago is in Dupage County, EPA Zone 2.

Q: How much does radon mitigation cost in West Chicago?

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

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

West Chicago, IL Radon Facts

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

County Dupage County, IL

Zip Code 60185

Located in DuPage County in the western suburbs of the Chicago Metro area (60185), West Chicago sits on dense glacial till over dolomite bedrock that creates significant radon potential across northeastern Illinois. Testing data for this railroad community is currently unavailable, limiting assessment of local radon conditions. Homeowners should test their properties, especially the many homes with full basements typical of this suburban region.

6.98

pCi/L area average

Above EPA Action Level

Dupage County average: 6.98 pCi/L, based on 45 user-submitted tests across 25 cities in the county. No homeowner readings have been submitted for West Chicago 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+

West Chicago, 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 West Chicago, IL

No homeowner tests have been submitted for West Chicago yet, so the closest user-submitted readings from neighboring communities are shown below. Radon varies by home — testing is the only way to know your level.

Radon Level	City	Distance	Home Age	Foundation	Submitted
5 pCi/L	Winfield, IL	2.8 mi	51-99 Years	Full Basement	Sep 2024
11 pCi/L	Winfield, IL	2.8 mi	21-50 Years	Full Basement	Jan 2023
2 pCi/L	Winfield, IL	2.8 mi	21-50 Years	Full Basement	Aug 2018
11 pCi/L	Warrenville, IL	4.2 mi	51-99 Years	Full Basement	Feb 2026
10 pCi/L	Warrenville, IL	4.2 mi	100+ Years	Full Basement	Aug 2017
6 pCi/L	Carol Stream, IL	4.6 mi	21-50 Years	Partial Basement	Dec 2020
8 pCi/L	Geneva, IL	5.6 mi	51-99 Years	Partial Basement	Jun 2024
6 pCi/L	Geneva, IL	5.6 mi	51-99 Years	Full Basement	Oct 2016

Readings are drawn from the nearest cities with submitted data. Have a result for West Chicago? Submit your reading to help your neighbors.

Dupage County Radon Profile

EPA mapping assigns Dupage County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 25 cities in Dupage County average 6.98 pCi/L across 45 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Dupage County home regardless of zone or a neighbor's results.

Radon FAQ for West Chicago, IL

What EPA Radon Zone is West Chicago in?

West Chicago and the 60185 zip code are in Dupage 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 West Chicago?

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

Radon mitigation in West Chicago 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 West Chicago?

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.

Radon Levels Near West Chicago, IL

User-submitted radon levels from the cities closest to West Chicago with recorded test data. Explore nearby communities to compare local readings.

City	Distance	Avg User Level	Submissions
Winfield	2.8 mi	5.75 pCi/L	4
Warrenville	4.2 mi	10.50 pCi/L	2
Carol Stream	4.6 mi	6.00 pCi/L	1
Geneva	5.6 mi	7.00 pCi/L	2
Wheaton	5.7 mi	4.00 pCi/L	1
Bartlett	6.3 mi	4.00 pCi/L	3
Glendale Heights	6.7 mi	11.00 pCi/L	1
Glen Ellyn	7.2 mi	9.00 pCi/L	3