Lake Charles, LA Radon Mitigation and Testing

Q: What EPA Radon Zone is Lake Charles in?

Lake Charles is in Calcasieu Parish County, EPA Zone 3.

Q: How much does radon mitigation cost in Lake Charles?

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

Calcasieu Parish County

EPA Zone 3

Southwest Louisiana's industrial hub in Calcasieu Parish sits on coastal plain sediments that typically contribute to lower radon potential throughout the Lake Charles metro area. Testing data for zip code 70601 is currently limited, though Louisiana's geological foundations generally result in minimal radon accumulation compared to inland regions. Residents with homes featuring unusual construction or enclosed spaces should still consider radon testing as individual properties can vary from regional trends.

Lake Charles, LA Radon Mitigation

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

Lake Charles, LA Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Lake Charles Radon Facts

Key details about the radon risk profile for Lake Charles and the 70601 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Calcasieu Parish County, LA

Zip Code

70601

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Lake Charles and the 70601 zip code are located in Calcasieu Parish County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Lake Charles, LA

What EPA Radon Zone is Lake Charles in?

Lake Charles and the 70601 zip code are in Calcasieu Parish County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Lake Charles?

Radon mitigation in Lake Charles 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 Lake Charles?

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.

Most Active Radon Markets in Louisiana

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
New Orleans	8.00 pCi/L	1