Hartford, IL Radon Levels

Q: What EPA Radon Zone is Hartford in?

Hartford is in Madison County, EPA Zone 2.

Q: How much does radon mitigation cost in Hartford?

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

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

Hartford, IL Radon Facts

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

County Madison County, IL

Zip Code 62048

Situated in Madison County on the Illinois side of the St. Louis metropolitan area, Hartford lies within Mississippi River floodplain deposits over limestone bedrock. The community's housing includes both historic structures and newer developments, with basements less common than in northern Illinois but still present in many homes. While specific testing data is limited for Hartford, residents should consider radon testing given the underlying geology's moderate potential for elevated readings.

5.44

pCi/L area average

Above EPA Action Level

Madison County average: 5.44 pCi/L, based on 9 user-submitted tests across 8 cities in the county. No homeowner readings have been submitted for Hartford 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+

Hartford, IL Radon Mitigation

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

Need Radon Mitigation or Testing in Hartford?

100% Free, No-Obligation Quotes
Matches You with State-Licensed Madison County Pros

1-800-299-3578 217-717-8001 (local) Toll-free · Mon–Fri 8am–6pm ET

Radon Readings Near Hartford, IL

No homeowner tests have been submitted for Hartford 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
East Alton	3.7 mi	4.00 pCi/L	1
Granite City	7.1 mi	8.00 pCi/L	1
Glen Carbon	8.0 mi	2.50 pCi/L	2
Godfrey	10.2 mi	6.00 pCi/L	1
Maryville	10.4 mi	11.00 pCi/L	1
Collinsville	11.5 mi	5.00 pCi/L	1
Troy	13.9 mi	4.00 pCi/L	1
Caseyville	14.0 mi	7.50 pCi/L	2

Madison County Radon Profile

The soils and bedrock of Madison County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 8 cities in Madison County average 5.44 pCi/L across 9 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 Madison County to test, as levels can differ between neighboring homes.

Radon FAQ for Hartford, IL

What EPA Radon Zone is Hartford in?

Hartford and the 62048 zip code are in Madison 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 Hartford?

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

Radon mitigation in Hartford 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 Hartford?

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.