Jacksonville, IL Radon Levels
Check local Jacksonville radon levels and find certified testing and mitigation professionals to keep your home safe
Jacksonville, IL Radon Facts
Based on available testing, Jacksonville in Morgan County shows an average radon level of 9.0 pCi/L, more than double the EPA's 4.0 pCi/L action threshold. This west-central Illinois community sits on glacial till deposits over limestone bedrock, geological conditions that favor significant radon production and accumulation. The area's mix of historic homes and newer construction, many with full basements typical of the region, creates ideal conditions for radon buildup that requires immediate professional attention.
Based on 2 user-submitted radon tests for homes in Jacksonville, IL. The EPA recommends taking action at or above 4.0 pCi/L.
Jacksonville, IL Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Jacksonville, IL Radon Levels
User-submitted radon test readings from homes in the Jacksonville area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 12 pCi/L | Jacksonville, IL | 51-99 Years | Full Basement |
| 6 pCi/L | Jacksonville, IL | 21-50 Years | No Basement/All Crawl Space |
Have a radon test result for Jacksonville? Submit your reading to help other homeowners.
Radon Readings Near Jacksonville, IL
Compare radon levels in Jacksonville with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| White Hall | 23.0 mi | 6.00 pCi/L | 1 |
| Griggsville | 26.4 mi | 4.00 pCi/L | 1 |
| Auburn | 27.6 mi | 6.00 pCi/L | 1 |
| Chatham | 27.8 mi | 3.00 pCi/L | 1 |
| Springfield | 30.8 mi | 6.50 pCi/L | 2 |
| Lincolns New Salem | 31.2 mi | 8.00 pCi/L | 1 |
| Pittsfield | 32.1 mi | 5.00 pCi/L | 1 |
| Divernon | 32.2 mi | 7.00 pCi/L | 1 |
Morgan County Radon Profile
Because of its underlying geology, Morgan County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 1 city in Morgan County average 9.00 pCi/L across 2 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 Morgan County home regardless of zone or a neighbor's results.