Pittsburg, IL Radon Levels

Q: What EPA Radon Zone is Pittsburg in?

Pittsburg is in Williamson County, EPA Zone 2.

Q: How much does radon mitigation cost in Pittsburg?

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

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

Pittsburg, IL Radon Facts

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

County Williamson County, IL

Zip Code 62974

Located in Williamson County amid southern Illinois coal country, Pittsburg sits where Pennsylvanian-era coal measures and shale deposits create generally moderate radon potential. Testing data for this zip code 62974 community remains limited, making professional radon testing essential for homeowners in this region. Mixed housing stock, from older farmsteads to newer developments, can show surprising variation in radon levels even within the same neighborhood.

5.00

pCi/L area average

Above EPA Action Level

Williamson County average: 5.00 pCi/L, based on 1 user-submitted test across 1 city in the county. No homeowner readings have been submitted for Pittsburg 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+

Pittsburg, 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 Pittsburg, IL

No homeowner tests have been submitted for Pittsburg 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
Marion	8.6 mi	5.00 pCi/L	1
Murphysboro	28.7 mi	10.00 pCi/L	1
Mount Vernon	35.8 mi	4.00 pCi/L	1
Campbell Hill	42.9 mi	1.00 pCi/L	1
Kell	49.4 mi	5.00 pCi/L	1

Williamson County Radon Profile

EPA mapping assigns Williamson 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 1 city in Williamson County average 5.00 pCi/L across 1 test — 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 Williamson County home regardless of zone or a neighbor's results.

Radon FAQ for Pittsburg, IL

What EPA Radon Zone is Pittsburg in?

Pittsburg and the 62974 zip code are in Williamson 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 Pittsburg?

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

Radon mitigation in Pittsburg 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 Pittsburg?

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.