Sublette, IL Radon Levels

Q: What EPA Radon Zone is Sublette in?

Sublette is in Lee County, EPA Zone 1.

Q: How much does radon mitigation cost in Sublette?

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

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

Sublette, IL Radon Facts

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

County Lee County, IL

Zip Code 61367

Located in Lee County in northern Illinois, Sublette sits on glacial deposits that can contribute to elevated radon levels in area homes. The community's housing includes both historic farmhouses and more recent residential construction, most featuring full or partial basement foundations common to the region. Professional radon testing is recommended for zip code 61367 residents, as limited testing data makes it difficult to assess typical radon levels in individual homes.

9.25

pCi/L area average

Above EPA Action Level

Lee County average: 9.25 pCi/L, based on 4 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Sublette 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+

Sublette, 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 Sublette, IL

No homeowner tests have been submitted for Sublette 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	Amboy, IL	7.6 mi	0-20 Years	No Basement/All Slab	Mar 2021
4 pCi/L	Ashton, IL	16.0 mi	100+ Years	Full Basement	Aug 2024
11 pCi/L	Earlville, IL	17.1 mi	100+ Years	Full Basement	Sep 2020
20 pCi/L	Dixon, IL	19.8 mi	51-99 Years	Full Basement	Aug 2022
8 pCi/L	Dixon, IL	19.8 mi	21-50 Years	Full Basement	Nov 2016
5 pCi/L	Walnut, IL	20.4 mi	0-20 Years	Full Basement	Aug 2024
8 pCi/L	Princeton, IL	21.1 mi	100+ Years	—	Sep 2025
15 pCi/L	Princeton, IL	21.1 mi	51-99 Years	Partial Basement	Jun 2019

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

Lee County Radon Profile

Lee 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 3 cities in Lee County average 9.25 pCi/L across 4 tests — 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 Lee County to test, as levels can differ between neighboring homes.

Radon FAQ for Sublette, IL

What EPA Radon Zone is Sublette in?

Sublette and the 61367 zip code are in Lee 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 Sublette?

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

Radon mitigation in Sublette 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 Sublette?

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 Sublette, IL

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

City	Distance	Avg User Level	Submissions
Amboy	7.6 mi	5.00 pCi/L	1
Ashton	16.0 mi	4.00 pCi/L	1
Earlville	17.1 mi	11.00 pCi/L	1
Dixon	19.8 mi	14.00 pCi/L	2
Walnut	20.4 mi	5.00 pCi/L	1
Princeton	21.1 mi	11.50 pCi/L	2
Spring Valley	21.1 mi	2.00 pCi/L	1
Peru	21.5 mi	6.50 pCi/L	2