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Mokena, IL Radon Levels

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


Mokena, IL Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Will County, IL
Zip Code 60448
Avg. User Level 5.70 pCi/L
User Tests 3

This thriving Will County suburb in the southern reaches of the Chicago metro has recorded an average radon level of 5.67 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. Based on testing data from the 60448 zip code area, readings have ranged from 4.0 to 8.0 pCi/L, indicating that radon mitigation should be considered for area homes. The community's predominantly newer suburban housing with full basements sits atop glacial till deposits that enhance radon migration through foundation systems.

5.70
pCi/L average
Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Mokena, IL. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Mokena, IL Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Mokena, IL Radon Levels

User-submitted radon test readings from homes in the Mokena area.

Radon LevelCityHome AgeFoundation
8 pCi/L Mokena, IL 21-50 Years Full Basement
5 pCi/L Mokena, IL 0-20 Years Full Basement
4 pCi/L Mokena, IL 0-20 Years Full Basement

Have a radon test result for Mokena? Submit your reading to help other homeowners.

Radon Readings Near Mokena, IL

Compare radon levels in Mokena with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
New Lenox 4.2 mi 10.14 pCi/L 7
Tinley Park 4.6 mi 7.67 pCi/L 3
Orland Park 5.4 mi 7.00 pCi/L 3
Homer Glen 5.9 mi 4.33 pCi/L 3
Matteson 8.0 mi 15.00 pCi/L 1
Manhattan 8.5 mi 8.00 pCi/L 1
Lockport 9.2 mi 12.50 pCi/L 2
Joliet 9.3 mi 6.67 pCi/L 3

Will County Radon Profile

EPA mapping assigns Will 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 16 cities in Will County average 8.00 pCi/L across 30 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 Will County home regardless of zone or a neighbor's results.

Radon FAQ for Mokena, IL

What is the average radon level in Mokena, IL?
Based on 3 user-submitted tests, the average radon level in Mokena is 5.70 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Mokena in?
Mokena and the 60448 zip code are in Will 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.
How much does radon mitigation cost in Mokena?
Radon mitigation in Mokena 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 Mokena?
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.