Fairview Heights, IL Radon Levels

Q: What is the average radon level in Fairview Heights, IL?

Based on 1 user-submitted tests, the average radon level is 9.00 pCi/L.

Q: What EPA Radon Zone is Fairview Heights in?

Fairview Heights is in St Clair County, EPA Zone 2.

Q: How much does radon mitigation cost in Fairview Heights?

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

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

Fairview Heights, IL Radon Facts

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

County St Clair County, IL

Zip Code 62208

Avg. User Level 9.00 pCi/L

User Tests 1

Located in St. Clair County on the Illinois side of the St. Louis Metro, Fairview Heights sits on Mississippi River floodplain deposits over Mississippian limestone bedrock. Testing data for zip code 62208 is currently limited, making home testing particularly important for residents. The area's mix of slab-on-grade and basement homes, combined with underlying limestone geology, creates variable radon potential that requires individual property assessment.

9.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Fairview Heights, IL. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Fairview Heights, 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 Fairview Heights, IL

No homeowner tests have been submitted for Fairview Heights 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
Caseyville	2.7 mi	7.50 pCi/L	2
Belleville	4.4 mi	7.33 pCi/L	3
Collinsville	6.2 mi	5.00 pCi/L	1
O Fallon	6.2 mi	6.00 pCi/L	1
Maryville	8.4 mi	11.00 pCi/L	1
Granite City	10.6 mi	8.00 pCi/L	1
Lebanon	11.2 mi	10.50 pCi/L	2
Troy	11.5 mi	4.00 pCi/L	1

St Clair County Radon Profile

EPA mapping assigns St Clair 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 7 cities in St Clair County average 7.50 pCi/L across 12 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 St Clair County home regardless of zone or a neighbor's results.

Radon FAQ for Fairview Heights, IL

What is the average radon level in Fairview Heights, IL?

Based on 1 user-submitted test, the average radon level in Fairview Heights is 9.00 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 Fairview Heights in?

Fairview Heights and the 62208 zip code are in St Clair 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 Fairview Heights?

Radon mitigation in Fairview Heights 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 Fairview Heights?

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.