Charlestown, IN Radon Mitigation and Testing

Q: What EPA Radon Zone is Charlestown in?

Charlestown is in Clark County, EPA Zone 1.

Q: How much does radon mitigation cost in Charlestown?

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

Clark County

EPA Zone 1

Positioned in Clark County along the Ohio River valley, Charlestown sits within Indiana's limestone-rich geological region that can produce variable radon levels. Available testing data for the 47111 zip code is currently limited, making individual home testing crucial for residents. The community's mix of riverfront properties and hillside developments, many featuring basement foundations common to the Louisville metro area, creates diverse radon entry potential.

Charlestown, IN Radon Mitigation

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

Charlestown, IN Radon Testing

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

Charlestown Radon Facts

Key details about the radon risk profile for Charlestown and the 47111 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Clark County, IN

Zip Code

47111

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Charlestown and the 47111 zip code are located in Clark County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Charlestown, IN

What EPA Radon Zone is Charlestown in?

Charlestown and the 47111 zip code are in Clark County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Charlestown?

Radon mitigation in Charlestown 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 Charlestown?

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 Indiana

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

City	Avg User Radon Level	Submissions
Bloomington	8.14 pCi/L	7
Kokomo	7.40 pCi/L	5
Lafayette	15.00 pCi/L	3
Valparaiso	10.00 pCi/L	3
Avon	6.00 pCi/L	3
West Lafayette	10.50 pCi/L	2
Dyer	9.50 pCi/L	2
Columbus	7.50 pCi/L	2
Noblesville	7.00 pCi/L	2
Westfield	7.00 pCi/L	2
Fishers	6.50 pCi/L	2
Corydon	6.00 pCi/L	2
Warsaw	5.50 pCi/L	2
Indianapolis	4.00 pCi/L	2
Newburgh	8.00 pCi/L	1
Logansport	7.00 pCi/L	1
Terre Haute	5.00 pCi/L	1
Muncie	4.00 pCi/L	1
Brownsburg	No submissions	0