Girard, IL Radon Levels

Q: What EPA Radon Zone is Girard in?

Girard is in Macoupin County, EPA Zone 2.

Q: Why are radon readings shown from areas near Girard?

No homeowner radon tests have been submitted for Girard yet, so readings from the closest cities and the Macoupin County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Girard?

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

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

Girard, IL Radon Facts

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

County Macoupin County, IL

Zip Code 62640

Positioned in Macoupin County within the St. Louis Metro area, Girard sits over Pennsylvanian coal measures and limestone bedrock typical of central Illinois. Historic homes and newer subdivisions in zip code 62640 typically feature full basements common to the region's construction practices. Testing data is currently limited, but the EPA Zone 2 designation and underlying geology suggest homeowners should conduct radon testing for peace of mind.

8.50

pCi/L area average

Above EPA Action Level

Macoupin County average: 8.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Girard 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+

Girard, 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 Girard, IL

No homeowner tests have been submitted for Girard 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
Carlinville	6.6 mi	9.00 pCi/L	1
Auburn	15.4 mi	6.00 pCi/L	1
Divernon	16.3 mi	7.00 pCi/L	1
Chatham	21.4 mi	3.00 pCi/L	1
Staunton	25.8 mi	8.00 pCi/L	1
White Hall	29.6 mi	6.00 pCi/L	1
Springfield	30.0 mi	6.50 pCi/L	2
Jacksonville	31.5 mi	9.00 pCi/L	2

Macoupin County Radon Profile

EPA mapping assigns Macoupin 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 2 cities in Macoupin County average 8.50 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 Macoupin County home regardless of zone or a neighbor's results.

Radon FAQ for Girard, IL

What EPA Radon Zone is Girard in?

Girard and the 62640 zip code are in Macoupin 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 Girard?

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

Radon mitigation in Girard 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 Girard?

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.