Crown City, OH Radon Mitigation and Testing

Q: What EPA Radon Zone is Crown City in?

Crown City is in Gallia County, EPA Zone 2.

Q: How much does radon mitigation cost in Crown City?

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

Gallia County

EPA Zone 2

Crown City, positioned along the Ohio River in Gallia County, sits within the Huntington metropolitan area where Paleozoic shale and sandstone formations influence local radon levels. With limited testing data available for zip code 45623, residents should prioritize professional radon measurement to establish baseline readings. The area's river valley location and underlying bedrock geology create conditions that can vary significantly from property to property.

Crown City, OH Radon Mitigation

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

Crown City, OH Radon Testing

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

Crown City Radon Facts

Key details about the radon risk profile for Crown City and the 45623 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Gallia County, OH

Zip Code

45623

Predicted Screening Level

2–4 pCi/L (Zone 2)

Crown City and the 45623 zip code are located in Gallia County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Crown City, OH

What EPA Radon Zone is Crown City in?

Crown City and the 45623 zip code are in Gallia 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 Crown City?

Radon mitigation in Crown City 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 Crown City?

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 Ohio

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

City	Avg User Radon Level	Submissions
Marietta	8.00 pCi/L	5
Cincinnati	5.20 pCi/L	5
Hilliard	11.75 pCi/L	4
Wilmington	5.25 pCi/L	4
Newark	15.00 pCi/L	3
Athens	11.33 pCi/L	3
Findlay	10.33 pCi/L	3
Perrysburg	9.67 pCi/L	3
Powell	8.33 pCi/L	3
Columbus	6.00 pCi/L	3
Chagrin Falls	4.67 pCi/L	3
Hamilton	10.00 pCi/L	2
Chardon	5.50 pCi/L	2
Strongsville	4.50 pCi/L	2
Maineville	10.00 pCi/L	1
Lancaster	9.00 pCi/L	1
West Chester	9.00 pCi/L	1
Amherst	6.00 pCi/L	1
Chillicothe	6.00 pCi/L	1
Lima	5.00 pCi/L	1